Revision control
Copy as Markdown
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
#include "qiosplatformaccessibility.h"
#include "quiaccessibilityelement.h"
#include "qioswindow.h"
#include <QtGui/private/qguiapplication_p.h>
#include <QtGui/private/qaccessiblebridgeutils_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);
if (UIAccessibilityElement *elem = [QT_MANGLE_NAMESPACE(QMacAccessibilityElement) elementWithId:accessibleId])
[m_accessibleElements addObject:elem];
}
- (void)createAccessibleContainer:(QAccessibleInterface *)iface
{
if (!iface || iface->state().invisible)
return;
QWindow *window = self.qwindow;
for (int i = 0; i < iface->childCount(); ++i) {
QAccessibleInterface *child = iface->child(i);
if (!child || child->state().invisible)
continue;
QWindow *childWindow = QAccessibleBridgeUtils::windowFor(child, iface, window);
if (childWindow != window && childWindow->handle()) {
[m_accessibleElements addObject:reinterpret_cast<UIView *>(childWindow->handle()->winId())];
continue;
}
[self createAccessibleContainer:child];
}
// The container element must go last, so that it underlays all its children
[self createAccessibleElement:iface];
}
- (void)initAccessibility
{
// The window may have gone away, but with the view
// temporarily caught in the a11y subsystem.
if (!self.platformWindow)
return;
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];
}
// 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