1/**************************************************************************** 2** 3** Copyright (C) 2016 The Qt Company Ltd. 4** Contact: https://www.qt.io/licensing/ 5** 6** This file is part of the plugins of the Qt Toolkit. 7** 8** $QT_BEGIN_LICENSE:LGPL$ 9** Commercial License Usage 10** Licensees holding valid commercial Qt licenses may use this file in 11** accordance with the commercial license agreement provided with the 12** Software or, alternatively, in accordance with the terms contained in 13** a written agreement between you and The Qt Company. For licensing terms 14** and conditions see https://www.qt.io/terms-conditions. For further 15** information use the contact form at https://www.qt.io/contact-us. 16** 17** GNU Lesser General Public License Usage 18** Alternatively, this file may be used under the terms of the GNU Lesser 19** General Public License version 3 as published by the Free Software 20** Foundation and appearing in the file LICENSE.LGPL3 included in the 21** packaging of this file. Please review the following information to 22** ensure the GNU Lesser General Public License version 3 requirements 23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24** 25** GNU General Public License Usage 26** Alternatively, this file may be used under the terms of the GNU 27** General Public License version 2.0 or (at your option) the GNU General 28** Public license version 3 or any later version approved by the KDE Free 29** Qt Foundation. The licenses are as published by the Free Software 30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31** included in the packaging of this file. Please review the following 32** information to ensure the GNU General Public License requirements will 33** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34** https://www.gnu.org/licenses/gpl-3.0.html. 35** 36** $QT_END_LICENSE$ 37** 38****************************************************************************/ 39 40#include "qiosplatformaccessibility.h" 41#include "quiaccessibilityelement.h" 42 43#include <QtGui/private/qguiapplication_p.h> 44 45@implementation QUIView (Accessibility) 46 47- (void)createAccessibleElement:(QAccessibleInterface *)iface 48{ 49 if (!iface || iface->state().invisible || (iface->text(QAccessible::Name).isEmpty() && iface->text(QAccessible::Value).isEmpty() && iface->text(QAccessible::Description).isEmpty())) 50 return; 51 QAccessible::Id accessibleId = QAccessible::uniqueId(iface); 52 UIAccessibilityElement *elem = [[QT_MANGLE_NAMESPACE(QMacAccessibilityElement) alloc] initWithId:accessibleId withAccessibilityContainer:self]; 53 [m_accessibleElements addObject:elem]; 54 [elem release]; 55} 56 57- (void)createAccessibleContainer:(QAccessibleInterface *)iface 58{ 59 if (!iface) 60 return; 61 62 [self createAccessibleElement: iface]; 63 for (int i = 0; i < iface->childCount(); ++i) 64 [self createAccessibleContainer: iface->child(i)]; 65} 66 67- (void)initAccessibility 68{ 69 static bool init = false; 70 if (!init) 71 QGuiApplicationPrivate::platformIntegration()->accessibility()->setActive(true); 72 init = true; 73 74 if ([m_accessibleElements count]) 75 return; 76 77 QWindow *win = self.platformWindow->window(); 78 QAccessibleInterface *iface = win->accessibleRoot(); 79 if (iface) 80 [self createAccessibleContainer: iface]; 81} 82 83- (void)clearAccessibleCache 84{ 85 [m_accessibleElements removeAllObjects]; 86 UIAccessibilityPostNotification(UIAccessibilityScreenChangedNotification, @""); 87} 88 89// this is a container, returning yes here means the functions below will never be called 90- (BOOL)isAccessibilityElement 91{ 92 return NO; 93} 94 95- (NSInteger)accessibilityElementCount 96{ 97 [self initAccessibility]; 98 return [m_accessibleElements count]; 99} 100 101- (id)accessibilityElementAtIndex:(NSInteger)index 102{ 103 [self initAccessibility]; 104 if (NSUInteger(index) >= [m_accessibleElements count]) 105 return nil; 106 return m_accessibleElements[index]; 107} 108 109- (NSInteger)indexOfAccessibilityElement:(id)element 110{ 111 [self initAccessibility]; 112 return [m_accessibleElements indexOfObject:element]; 113} 114 115- (NSArray *)accessibilityElements 116{ 117 [self initAccessibility]; 118 return m_accessibleElements; 119} 120 121@end 122