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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 "qaccessible.h"
#include "qaccessiblebridge.h"
#ifndef QT_NO_ACCESSIBILITY
#include "qcoreapplication.h"
#include "qmutex.h"
#include "qvector.h"
#include "private/qfactoryloader_p.h"
#include <stdlib.h>
QT_BEGIN_NAMESPACE
#ifndef QT_NO_LIBRARY
Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
(QAccessibleBridgeFactoryInterface_iid, QLatin1String("/accessiblebridge")))
#endif
Q_GLOBAL_STATIC(QVector<QAccessibleBridge *>, bridges)
static bool isInit = false;
void QAccessible::initialize()
{
if (isInit)
return;
isInit = true;
if (qgetenv("QT_ACCESSIBILITY") != "1")
return;
#ifndef QT_NO_LIBRARY
const QStringList l = loader()->keys();
for (int i = 0; i < l.count(); ++i) {
if (QAccessibleBridgeFactoryInterface *factory =
qobject_cast<QAccessibleBridgeFactoryInterface*>(loader()->instance(l.at(i)))) {
QAccessibleBridge * bridge = factory->create(l.at(i));
if (bridge)
bridges()->append(bridge);
}
}
#endif
}
void QAccessible::cleanup()
{
qDeleteAll(*bridges());
}
void QAccessible::updateAccessibility(QObject *o, int who, Event reason)
{
Q_ASSERT(o);
if (updateHandler) {
updateHandler(o, who, reason);
return;
}
initialize();
if (!bridges() || bridges()->isEmpty())
return;
QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(o);
if (!iface)
return;
// updates for List/Table/Tree should send child
if (who) {
QAccessibleInterface *child;
iface->navigate(QAccessible::Child, who, &child);
if (child) {
delete iface;
iface = child;
who = 0;
}
}
for (int i = 0; i < bridges()->count(); ++i)
bridges()->at(i)->notifyAccessibilityUpdate(reason, iface, who);
delete iface;
}
void QAccessible::setRootObject(QObject *o)
{
if (rootObjectHandler) {
rootObjectHandler(o);
return;
}
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);
}
}
QT_END_NAMESPACE
#endif // QT_NO_ACCESSIBILITY
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