1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKDELIVERYAGENT_P_P_H
#define QQUICKDELIVERYAGENT_P_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtQuick/private/qquickdeliveryagent_p.h>
#include <QtGui/qevent.h>
#include <QtCore/qstack.h>
#include <private/qevent_p.h>
#include <private/qpointingdevice_p.h>
#include <private/qobject_p.h>
QT_BEGIN_NAMESPACE
class QQuickDragGrabber;
class QQuickItem;
class QQuickPointerHandler;
class QQuickWindow;
/*! \internal
Extra device-specific data to be stored in QInputDevicePrivate::qqExtra
*/
struct QQuickPointingDeviceExtra {
// used in QQuickPointerHandlerPrivate::deviceDeliveryTargets
QVector<QObject *> deliveryTargets;
};
class Q_QUICK_PRIVATE_EXPORT QQuickDeliveryAgentPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QQuickDeliveryAgent)
public:
QQuickDeliveryAgentPrivate(QQuickItem *root);
~QQuickDeliveryAgentPrivate();
QQuickItem *rootItem = nullptr;
QQuickItem *activeFocusItem = nullptr;
void deliverKeyEvent(QKeyEvent *e);
enum FocusOption {
DontChangeFocusProperty = 0x01,
DontChangeSubFocusItem = 0x02
};
Q_DECLARE_FLAGS(FocusOptions, FocusOption)
void setFocusInScope(QQuickItem *scope, QQuickItem *item, Qt::FocusReason reason, FocusOptions = { });
void clearFocusInScope(QQuickItem *scope, QQuickItem *item, Qt::FocusReason reason, FocusOptions = { });
static void notifyFocusChangesRecur(QQuickItem **item, int remaining);
void clearFocusObject();
void updateFocusItemTransform();
// Keeps track of the item currently receiving mouse events
#if QT_CONFIG(quick_draganddrop)
QQuickDragGrabber *dragGrabber = nullptr;
#endif
QQuickItem *lastUngrabbed = nullptr;
QStack<QPointerEvent *> eventsInDelivery;
QList<QPointer<QQuickItem>> hoverItems;
QVector<QQuickItem *> hasFiltered; // during event delivery to a single receiver, the filtering parents for which childMouseEventFilter was already called
QVector<QQuickItem *> skipDelivery; // during delivery of one event to all receivers, Items to which we know delivery is no longer necessary
QScopedPointer<QMutableTouchEvent> delayedTouch;
QList<const QPointingDevice *> knownPointingDevices;
uint lastWheelEventAccepted = 0;
bool allowChildEventFiltering = true;
bool allowDoubleClick = true;
bool frameSynchronousHoverEnabled = true;
bool isSubsceneAgent = false;
static bool subsceneAgentsExist;
// QQuickDeliveryAgent::event() sets this to the one that's currently (trying to) handle the event
static QQuickDeliveryAgent *currentEventDeliveryAgent;
Qt::FocusReason lastFocusReason = Qt::OtherFocusReason;
int pointerEventRecursionGuard = 0;
int touchMouseId = -1; // only for obsolete stuff like QQuickItem::grabMouse()
// TODO get rid of these
const QPointingDevice *touchMouseDevice = nullptr;
ulong touchMousePressTimestamp = 0;
QPoint touchMousePressPos; // in screen coordinates
QQuickDeliveryAgent::Transform *sceneTransform = nullptr;
bool isDeliveringTouchAsMouse() const { return touchMouseId != -1 && touchMouseDevice; }
void cancelTouchMouseSynthesis();
bool checkIfDoubleTapped(ulong newPressEventTimestamp, QPoint newPressPos);
QPointingDevicePrivate::EventPointData *mousePointData();
QPointerEvent *eventInDelivery() const;
// Mouse positions are saved in widget coordinates
QPointF lastMousePosition;
bool deliverTouchAsMouse(QQuickItem *item, QTouchEvent *pointerEvent);
void translateTouchEvent(QTouchEvent *touchEvent);
void removeGrabber(QQuickItem *grabber, bool mouse = true, bool touch = true, bool cancel = false);
void onGrabChanged(QObject *grabber, QPointingDevice::GrabTransition transition, const QPointerEvent *event, const QEventPoint &point);
static QPointerEvent *clonePointerEvent(QPointerEvent *event, std::optional<QPointF> transformedLocalPos = std::nullopt);
void deliverToPassiveGrabbers(const QVector<QPointer<QObject> > &passiveGrabbers, QPointerEvent *pointerEvent);
bool sendFilteredMouseEvent(QEvent *event, QQuickItem *receiver, QQuickItem *filteringParent);
bool sendFilteredPointerEvent(QPointerEvent *event, QQuickItem *receiver, QQuickItem *filteringParent = nullptr);
bool sendFilteredPointerEventImpl(QPointerEvent *event, QQuickItem *receiver, QQuickItem *filteringParent);
bool deliverSinglePointEventUntilAccepted(QPointerEvent *);
// entry point of events to the window
void handleTouchEvent(QTouchEvent *);
void handleMouseEvent(QMouseEvent *);
bool compressTouchEvent(QTouchEvent *);
void flushFrameSynchronousEvents(QQuickWindow *win);
void deliverDelayedTouchEvent();
void handleWindowDeactivate(QQuickWindow *win);
// utility functions that used to be in QQuickPointerEvent et al.
bool allUpdatedPointsAccepted(const QPointerEvent *ev);
static void localizePointerEvent(QPointerEvent *ev, const QQuickItem *dest);
QList<QObject *> exclusiveGrabbers(QPointerEvent *ev);
static bool anyPointGrabbed(const QPointerEvent *ev);
static bool isMouseEvent(const QPointerEvent *ev);
static bool isHoverEvent(const QPointerEvent *ev);
static bool isTouchEvent(const QPointerEvent *ev);
static bool isTabletEvent(const QPointerEvent *ev);
static QQuickPointingDeviceExtra *deviceExtra(const QInputDevice *device);
// delivery of pointer events:
void touchToMouseEvent(QEvent::Type type, const QEventPoint &p, const QTouchEvent *touchEvent, QMutableSinglePointEvent *mouseEvent);
void ensureDeviceConnected(const QPointingDevice *dev);
void deliverPointerEvent(QPointerEvent *);
bool deliverTouchCancelEvent(QTouchEvent *);
bool deliverPressOrReleaseEvent(QPointerEvent *, bool handlersOnly = false);
void deliverUpdatedPoints(QPointerEvent *event);
void deliverMatchingPointsToItem(QQuickItem *item, bool isGrabber, QPointerEvent *pointerEvent, bool handlersOnly = false);
QVector<QQuickItem *> pointerTargets(QQuickItem *, const QPointerEvent *event, const QEventPoint &point,
bool checkMouseButtons, bool checkAcceptsTouch) const;
QVector<QQuickItem *> mergePointerTargets(const QVector<QQuickItem *> &list1, const QVector<QQuickItem *> &list2) const;
// hover delivery
bool deliverHoverEvent(QQuickItem *, const QPointF &scenePos, const QPointF &lastScenePos, Qt::KeyboardModifiers modifiers, ulong timestamp, bool &accepted);
bool sendHoverEvent(QEvent::Type, QQuickItem *, const QPointF &scenePos, const QPointF &lastScenePos,
Qt::KeyboardModifiers modifiers, ulong timestamp, bool accepted);
bool clearHover(ulong timestamp = 0);
#if QT_CONFIG(quick_draganddrop)
void deliverDragEvent(QQuickDragGrabber *, QEvent *);
bool deliverDragEvent(QQuickDragGrabber *, QQuickItem *, QDragMoveEvent *, QVarLengthArray<QQuickItem*, 64> *currentGrabItems = nullptr);
#endif
static bool dragOverThreshold(qreal d, Qt::Axis axis, QMouseEvent *event, int startDragThreshold = -1);
static bool dragOverThreshold(qreal d, Qt::Axis axis, const QEventPoint &tp, int startDragThreshold = -1);
static bool dragOverThreshold(QVector2D delta);
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QQuickDeliveryAgentPrivate::FocusOptions)
QT_END_NAMESPACE
#endif // QQUICKDELIVERYAGENT_P_P_H
|
