qplatformaccessibility.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2015 The Qt Company Ltd.-
4** Contact: http://www.qt.io/licensing/-
5**-
6** This file is part of the QtGui module of the Qt Toolkit.-
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30** $QT_END_LICENSE$-
31**-
32****************************************************************************/-
33#include "qplatformaccessibility.h"-
34#include <private/qfactoryloader_p.h>-
35#include "qaccessibleplugin.h"-
36#include "qaccessibleobject.h"-
37#include "qaccessiblebridge.h"-
38#include <QtGui/QGuiApplication>-
39-
40#include <QDebug>-
41-
42QT_BEGIN_NAMESPACE-
43-
44#ifndef QT_NO_ACCESSIBILITY-
45-
46/* accessiblebridge plugin discovery stuff */-
47#ifndef QT_NO_LIBRARY-
48Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, bridgeloader,
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49 (QAccessibleBridgeFactoryInterface_iid, QLatin1String("/accessiblebridge")))-
50#endif-
51-
52Q_GLOBAL_STATIC(QVector<QAccessibleBridge *>, bridges)
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53-
54/*!-
55 \class QPlatformAccessibility-
56 \since 5.0-
57 \internal-
58 \preliminary-
59 \ingroup qpa-
60 \ingroup accessibility-
61-
62 \brief The QPlatformAccessibility class is the base class for-
63 integrating accessibility backends-
64-
65 \sa QAccessible-
66*/-
67QPlatformAccessibility::QPlatformAccessibility()-
68 : m_active(false)-
69{-
70}
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71-
72QPlatformAccessibility::~QPlatformAccessibility()-
73{-
74}-
75-
76void QPlatformAccessibility::notifyAccessibilityUpdate(QAccessibleEvent *event)-
77{-
78 initialize();-
79-
80 if (!bridges() || bridges()->isEmpty())
!bridges()Description
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bridges()->isEmpty()Description
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81 return;
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82-
83 for (int i = 0; i < bridges()->count(); ++i)
i < bridges()->count()Description
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84 bridges()->at(i)->notifyAccessibilityUpdate(event);
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0
85}
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86-
87void QPlatformAccessibility::setRootObject(QObject *o)-
88{-
89 initialize();-
90 if (bridges()->isEmpty())
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91 return;
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92-
93 if (!o)
!oDescription
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94 return;
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95-
96 for (int i = 0; i < bridges()->count(); ++i) {
i < bridges()->count()Description
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97 QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(o);-
98 bridges()->at(i)->setRootObject(iface);-
99 }
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100}
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101-
102void QPlatformAccessibility::initialize()-
103{-
104 static bool isInit = false;-
105 if (isInit)
isInitDescription
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106 return;
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107 isInit = true; // ### not atomic-
108-
109#ifndef QT_NO_LIBRARY-
110 typedef QMultiMap<int, QString> PluginKeyMap;-
111 typedef PluginKeyMap::const_iterator PluginKeyMapConstIterator;-
112-
113 const PluginKeyMap keyMap = bridgeloader()->keyMap();-
114 QAccessibleBridgePlugin *factory = 0;-
115 int i = -1;-
116 const PluginKeyMapConstIterator cend = keyMap.constEnd();-
117 for (PluginKeyMapConstIterator it = keyMap.constBegin(); it != cend; ++it) {
it != cendDescription
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118 if (it.key() != i) {
it.key() != iDescription
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119 i = it.key();-
120 factory = qobject_cast<QAccessibleBridgePlugin*>(bridgeloader()->instance(i));-
121 }
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122 if (factory)
factoryDescription
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123 if (QAccessibleBridge *bridge = factory->create(it.value()))
QAccessibleBri...te(it.value())Description
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124 bridges()->append(bridge);
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125 }
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126#endif-
127}
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128-
129void QPlatformAccessibility::cleanup()-
130{-
131 qDeleteAll(*bridges());-
132}
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133-
134void QPlatformAccessibility::setActive(bool active)-
135{-
136 m_active = active;-
137 QAccessible::setActive(active);-
138}
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139-
140#endif // QT_NO_ACCESSIBILITY-
141-
142QT_END_NAMESPACE-
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