146 lines
4.0 KiB
C++
146 lines
4.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qaccessible.h"
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#include "qaccessiblebridge.h"
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#ifndef QT_NO_ACCESSIBILITY
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#include "qcoreapplication.h"
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#include "qmutex.h"
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#include "qvector.h"
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#include "private/qfactoryloader_p.h"
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#include <stdlib.h>
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QT_BEGIN_NAMESPACE
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#ifndef QT_NO_LIBRARY
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Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
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(QAccessibleBridgeFactoryInterface_iid, QLatin1String("/accessiblebridge")))
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#endif
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Q_GLOBAL_STATIC(QVector<QAccessibleBridge *>, bridges)
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static bool isInit = false;
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void QAccessible::initialize()
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{
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if (isInit)
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return;
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isInit = true;
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if (qgetenv("QT_ACCESSIBILITY") != "1")
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return;
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#ifndef QT_NO_LIBRARY
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const QStringList l = loader()->keys();
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for (int i = 0; i < l.count(); ++i) {
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if (QAccessibleBridgeFactoryInterface *factory =
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qobject_cast<QAccessibleBridgeFactoryInterface*>(loader()->instance(l.at(i)))) {
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QAccessibleBridge * bridge = factory->create(l.at(i));
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if (bridge)
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bridges()->append(bridge);
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}
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}
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#endif
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}
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void QAccessible::cleanup()
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{
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qDeleteAll(*bridges());
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}
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void QAccessible::updateAccessibility(QObject *o, int who, Event reason)
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{
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Q_ASSERT(o);
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if (updateHandler) {
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updateHandler(o, who, reason);
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return;
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}
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initialize();
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if (!bridges() || bridges()->isEmpty())
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return;
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QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(o);
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if (!iface)
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return;
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// updates for List/Table/Tree should send child
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if (who) {
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QAccessibleInterface *child;
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iface->navigate(QAccessible::Child, who, &child);
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if (child) {
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delete iface;
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iface = child;
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who = 0;
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}
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}
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for (int i = 0; i < bridges()->count(); ++i)
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bridges()->at(i)->notifyAccessibilityUpdate(reason, iface, who);
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delete iface;
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}
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void QAccessible::setRootObject(QObject *o)
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{
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if (rootObjectHandler) {
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rootObjectHandler(o);
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return;
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}
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initialize();
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if (bridges()->isEmpty())
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return;
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if (!o)
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return;
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for (int i = 0; i < bridges()->count(); ++i) {
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QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(o);
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bridges()->at(i)->setRootObject(iface);
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}
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}
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QT_END_NAMESPACE
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#endif // QT_NO_ACCESSIBILITY
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