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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 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 <Carbon/Carbon.h>
#include "qnsview.h"
#include "qcocoahelpers.h"
#include "qcocoaaccessibility.h"
#include "qcocoaaccessibilityelement.h"
#include <qpa/qplatformintegration.h>
#include <QtGui/private/qaccessible2_p.h>
#include <QtCore/QDebug>
#import <AppKit/NSAccessibility.h>
@implementation QNSView (QNSViewAccessibility)
// The QNSView is a container that the user does not interact directly with:
// Remove it from the user-visible accessibility tree.
- (BOOL)accessibilityIsIgnored {
return YES;
}
- (id)accessibilityAttributeValue:(NSString *)attribute {
// activate accessibility updates
QGuiApplicationPrivate::platformIntegration()->accessibility()->setActive(true);
if ([attribute isEqualToString:NSAccessibilityRoleAttribute]) {
if (m_window->accessibleRoot())
return QCocoaAccessible::macRole(m_window->accessibleRoot());
return NSAccessibilityUnknownRole;
} else if ([attribute isEqualToString:NSAccessibilityRoleDescriptionAttribute]) {
return NSAccessibilityRoleDescriptionForUIElement(self);
} else if ([attribute isEqualToString:NSAccessibilityChildrenAttribute]) {
if (!m_window->accessibleRoot())
return [super accessibilityAttributeValue:attribute];
// Create QCocoaAccessibleElements for each child if the
// root accessible interface.
int numKids = m_window->accessibleRoot()->childCount();
NSMutableArray *kids = [NSMutableArray arrayWithCapacity:numKids];
for (int i = 0; i < numKids; ++i) {
QAccessibleInterface *child = m_window->accessibleRoot()->child(i);
Q_ASSERT(child);
QAccessible::Id childAxid = QAccessible::uniqueId(child);
QCocoaAccessibleElement *element = [QCocoaAccessibleElement createElementWithId:childAxid parent:self];
[kids addObject: element];
[element release];
}
return NSAccessibilityUnignoredChildren(kids);
} else {
return [super accessibilityAttributeValue:attribute];
}
}
- (id)accessibilityHitTest:(NSPoint)point {
if (!m_window->accessibleRoot())
return [super accessibilityHitTest:point];
QAccessibleInterface *childInterface = m_window->accessibleRoot()->childAt(point.x, qt_mac_flipYCoordinate(point.y));
// No child found, meaning we hit the NSView
if (!childInterface) {
return [super accessibilityHitTest:point];
}
// Hit a child, forward to child accessible interface.
QAccessible::Id childAxid = QAccessible::uniqueId(childInterface);
// FIXME: parent could be wrong
QCocoaAccessibleElement *accessibleElement = [QCocoaAccessibleElement createElementWithId:childAxid parent:self ];
[accessibleElement autorelease];
return [accessibleElement accessibilityHitTest:point];
}
- (id)accessibilityFocusedUIElement {
if (!m_window->accessibleRoot())
return [super accessibilityFocusedUIElement];
QAccessibleInterface *childInterface = m_window->accessibleRoot()->focusChild();
if (childInterface) {
QAccessible::Id childAxid = QAccessible::uniqueId(childInterface);
// FIXME: parent could be wrong
QCocoaAccessibleElement *accessibleElement = [QCocoaAccessibleElement createElementWithId:childAxid parent:self];
[accessibleElement autorelease];
return accessibleElement;
}
// should not happen
return nil;
}
@end
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