blob: c35d43c1d9445980ba07c43ad0e8f87ab3dc2523 (
plain)
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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtScxml 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "eventconnection_p.h"
QT_BEGIN_NAMESPACE
/*!
\qmltype EventConnection
\instantiates QScxmlEventConnection
\inqmlmodule QtScxml
\since QtScxml 5.8
\brief Connects to events sent out by state machines.
To receive a notification when a state machine sends out an event, a
connection can be created to the corresponding signal.
*/
/*!
\qmlproperty QStringList EventConnection::events
The list of SCXML event specifiers that describe the events to listen for.
Even though spaces are allowed in event specifications in SCXML documents,
they are not allowed in this list. However, the list can contain multiple
specifiers, to the same effect.
*/
/*!
\qmlproperty QScxmlStateMachine EventConnection::stateMachine
The state machine that sends out the event.
*/
/*!
\qmlsignal EventConnection::occurred(QScxmlEvent event)
This signal is emitted when the event \a event occurrs.
The corresponding signal handler is \c onOccurred.
*/
QScxmlEventConnection::QScxmlEventConnection(QObject *parent) :
QObject(parent), m_stateMachine(nullptr)
{
}
QStringList QScxmlEventConnection::events() const
{
return m_events;
}
void QScxmlEventConnection::setEvents(const QStringList &events)
{
if (events != m_events) {
m_events = events;
doConnect();
emit eventsChanged();
}
}
QScxmlStateMachine *QScxmlEventConnection::stateMachine() const
{
return m_stateMachine;
}
void QScxmlEventConnection::setStateMachine(QScxmlStateMachine *stateMachine)
{
if (stateMachine != m_stateMachine) {
m_stateMachine = stateMachine;
doConnect();
emit stateMachineChanged();
}
}
void QScxmlEventConnection::doConnect()
{
for (const QMetaObject::Connection &connection : qAsConst(m_connections))
disconnect(connection);
m_connections.clear();
if (m_stateMachine) {
for (const QString &event : qAsConst(m_events)) {
m_connections.append(m_stateMachine->connectToEvent(event, this,
&QScxmlEventConnection::occurred));
}
}
}
void QScxmlEventConnection::classBegin()
{
}
void QScxmlEventConnection::componentComplete()
{
if (!m_stateMachine) {
if ((m_stateMachine = qobject_cast<QScxmlStateMachine *>(parent())))
doConnect();
}
}
QT_END_NAMESPACE
|
