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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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
/* accessiblebridge plugin discovery stuff */
#ifndef QT_NO_LIBRARY
Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, bridgeloader,
(QAccessibleBridgeFactoryInterface_iid, QLatin1String("/accessiblebridge")))
#endif
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()
{
}
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
#ifndef QT_NO_LIBRARY
const QStringList l = bridgeloader()->keys();
for (int i = 0; i < l.count(); ++i) {
if (QAccessibleBridgeFactoryInterface *factory =
qobject_cast<QAccessibleBridgeFactoryInterface*>(bridgeloader()->instance(l.at(i)))) {
QAccessibleBridge * bridge = factory->create(l.at(i));
if (bridge) {
bridges()->append(bridge);
}
}
}
#endif
}
void QPlatformAccessibility::cleanup()
{
qDeleteAll(*bridges());
}
QT_END_NAMESPACE
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