/**************************************************************************** ** ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the QtGui module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Digia. For licensing terms and ** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, 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, Digia gives you certain additional ** rights. These rights are described in the Digia 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. ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #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 QT_BEGIN_NAMESPACE #ifndef QT_NO_LIBRARY Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader, (QAccessibleBridgeFactoryInterface_iid, QLatin1String("/accessiblebridge"))) #endif Q_GLOBAL_STATIC(QVector, 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(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