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| ****************************************************************************/ |
| #include "qplatformaccessibility.h" |
| #include <private/qfactoryloader_p.h> |
| #include "qaccessibleplugin.h" |
| #include "qaccessibleobject.h" |
| #include "qaccessiblebridge.h" |
| #include <QtGui/QGuiApplication> |
| |
| #include <QDebug> |
| |
| QT_BEGIN_NAMESPACE |
| |
| #ifndef QT_NO_ACCESSIBILITY |
| |
| /* accessiblebridge plugin discovery stuff */ |
| Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, bridgeloader, |
| (QAccessibleBridgeFactoryInterface_iid, QLatin1String("/accessiblebridge"))) |
| |
| Q_GLOBAL_STATIC(QVector<QAccessibleBridge *>, bridges) |
| |
| /*! |
| \class QPlatformAccessibility |
| \since 5.0 |
| \internal |
| \preliminary |
| \ingroup qpa |
| \ingroup accessibility |
| |
| \brief The QPlatformAccessibility class is the base class for |
| integrating accessibility backends |
| |
| \sa QAccessible |
| */ |
| QPlatformAccessibility::QPlatformAccessibility() |
| : m_active(false) |
| { |
| } |
| |
| QPlatformAccessibility::~QPlatformAccessibility() |
| { |
| } |
| |
| void QPlatformAccessibility::notifyAccessibilityUpdate(QAccessibleEvent *event) |
| { |
| initialize(); |
| |
| if (!bridges() || bridges()->isEmpty()) |
| return; |
| |
| for (int i = 0; i < bridges()->count(); ++i) |
| bridges()->at(i)->notifyAccessibilityUpdate(event); |
| } |
| |
| void QPlatformAccessibility::setRootObject(QObject *o) |
| { |
| initialize(); |
| if (bridges()->isEmpty()) |
| return; |
| |
| if (!o) |
| return; |
| |
| for (int i = 0; i < bridges()->count(); ++i) { |
| QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(o); |
| bridges()->at(i)->setRootObject(iface); |
| } |
| } |
| |
| void QPlatformAccessibility::initialize() |
| { |
| static bool isInit = false; |
| if (isInit) |
| return; |
| isInit = true; // ### not atomic |
| |
| typedef QMultiMap<int, QString> PluginKeyMap; |
| typedef PluginKeyMap::const_iterator PluginKeyMapConstIterator; |
| |
| const PluginKeyMap keyMap = bridgeloader()->keyMap(); |
| QAccessibleBridgePlugin *factory = 0; |
| int i = -1; |
| const PluginKeyMapConstIterator cend = keyMap.constEnd(); |
| for (PluginKeyMapConstIterator it = keyMap.constBegin(); it != cend; ++it) { |
| if (it.key() != i) { |
| i = it.key(); |
| factory = qobject_cast<QAccessibleBridgePlugin*>(bridgeloader()->instance(i)); |
| } |
| if (factory) |
| if (QAccessibleBridge *bridge = factory->create(it.value())) |
| bridges()->append(bridge); |
| } |
| } |
| |
| void QPlatformAccessibility::cleanup() |
| { |
| qDeleteAll(*bridges()); |
| } |
| |
| void QPlatformAccessibility::setActive(bool active) |
| { |
| m_active = active; |
| QAccessible::setActive(active); |
| } |
| |
| #endif // QT_NO_ACCESSIBILITY |
| |
| QT_END_NAMESPACE |