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
|
/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQUICKACCESSIBLEATTACHED_H
#define QQUICKACCESSIBLEATTACHED_H
#include <QtQuick/qquickitem.h>
#include <QtCore/qobject.h>
#include <QtCore/qstring.h>
#ifndef QT_NO_ACCESSIBILITY
#include <QtGui/qaccessible.h>
#include <private/qtquickglobal_p.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
class Q_QUICK_PRIVATE_EXPORT QQuickAccessibleAttached : public QObject
{
Q_OBJECT
Q_PROPERTY(QAccessible::Role role READ role WRITE setRole NOTIFY roleChanged)
Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
Q_PROPERTY(QString description READ description WRITE setDescription NOTIFY descriptionChanged)
public:
Q_ENUMS(QAccessible::Role QAccessible::Event QAccessible::State)
QQuickAccessibleAttached(QObject *parent);
~QQuickAccessibleAttached();
QAccessible::Role role() const { return m_role; }
void setRole(QAccessible::Role role)
{
if (role != m_role) {
m_role = role;
emit roleChanged();
// There is no way to signify role changes at the moment.
// QAccessible::updateAccessibility(parent(), 0, QAccessible::);
}
}
QString name() const { return m_name; }
void setName(const QString &name) {
if (name != m_name) {
m_name = name;
emit nameChanged();
QAccessibleEvent ev(parent(), QAccessible::NameChanged);
QAccessible::updateAccessibility(&ev);
}
}
QString description() const { return m_description; }
void setDescription(const QString &description)
{
if (m_description != description) {
m_description = description;
emit descriptionChanged();
QAccessibleEvent ev(parent(), QAccessible::DescriptionChanged);
QAccessible::updateAccessibility(&ev);
}
}
// Factory function
static QQuickAccessibleAttached *qmlAttachedProperties(QObject *obj);
// Property getter
static QObject *attachedProperties(const QObject *obj)
{
return qmlAttachedPropertiesObject<QQuickAccessibleAttached>(obj, false);
}
static QVariant property(const QObject *object, const char *propertyName)
{
if (QObject *attachedObject = QQuickAccessibleAttached::attachedProperties(object))
return attachedObject->property(propertyName);
return QVariant();
}
static bool setProperty(QObject *object, const char *propertyName, const QVariant &value)
{
QObject *obj = qmlAttachedPropertiesObject<QQuickAccessibleAttached>(object, true);
if (!obj) {
qWarning("cannot set property Accessible.%s of QObject %s", propertyName, object->metaObject()->className());
return false;
}
return obj->setProperty(propertyName, value);
}
static QObject *findAccessible(QObject *object, QAccessible::Role role = QAccessible::NoRole)
{
while (object) {
QObject *att = QQuickAccessibleAttached::attachedProperties(object);
if (att && (role == QAccessible::NoRole || att->property("role").toInt() == role)) {
break;
}
object = object->parent();
}
return object;
}
public Q_SLOTS:
void valueChanged() {
QAccessibleValueChangeEvent ev(parent(), parent()->property("value"));
QAccessible::updateAccessibility(&ev);
}
Q_SIGNALS:
void roleChanged();
void nameChanged();
void descriptionChanged();
private:
QAccessible::Role m_role;
QString m_name;
QString m_description;
public:
using QObject::property;
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QQuickAccessibleAttached)
QML_DECLARE_TYPEINFO(QQuickAccessibleAttached, QML_HAS_ATTACHED_PROPERTIES)
QT_END_HEADER
#endif // QT_NO_ACCESSIBILITY
#endif
|
