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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qiosplatformaccessibility.h"
#include "quiaccessibilityelement.h"
#include <QtGui/private/qguiapplication_p.h>
@implementation QUIView (Accessibility)
- (void)createAccessibleElement:(QAccessibleInterface *)iface
{
if (!iface || iface->state().invisible || (iface->text(QAccessible::Name).isEmpty() && iface->text(QAccessible::Value).isEmpty() && iface->text(QAccessible::Description).isEmpty()))
return;
QAccessible::Id accessibleId = QAccessible::uniqueId(iface);
UIAccessibilityElement *elem = [[QT_MANGLE_NAMESPACE(QMacAccessibilityElement) alloc] initWithId:accessibleId withAccessibilityContainer:self];
[m_accessibleElements addObject:elem];
[elem release];
}
- (void)createAccessibleContainer:(QAccessibleInterface *)iface
{
if (!iface)
return;
[self createAccessibleElement: iface];
for (int i = 0; i < iface->childCount(); ++i)
[self createAccessibleContainer: iface->child(i)];
}
- (void)initAccessibility
{
static bool init = false;
if (!init)
QGuiApplicationPrivate::platformIntegration()->accessibility()->setActive(true);
init = true;
if ([m_accessibleElements count])
return;
QWindow *win = self.platformWindow->window();
QAccessibleInterface *iface = win->accessibleRoot();
if (iface)
[self createAccessibleContainer: iface];
}
- (void)clearAccessibleCache
{
[m_accessibleElements removeAllObjects];
UIAccessibilityPostNotification(UIAccessibilityScreenChangedNotification, @"");
}
// this is a container, returning yes here means the functions below will never be called
- (BOOL)isAccessibilityElement
{
return NO;
}
- (NSInteger)accessibilityElementCount
{
[self initAccessibility];
return [m_accessibleElements count];
}
- (id)accessibilityElementAtIndex:(NSInteger)index
{
[self initAccessibility];
if (NSUInteger(index) >= [m_accessibleElements count])
return nil;
return m_accessibleElements[index];
}
- (NSInteger)indexOfAccessibilityElement:(id)element
{
[self initAccessibility];
return [m_accessibleElements indexOfObject:element];
}
- (NSArray *)accessibilityElements
{
[self initAccessibility];
return m_accessibleElements;
}
@end
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