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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
**
******************************************************************************/
#include "qiosplatformaccessibility.h"
#ifndef QT_NO_ACCESSIBILITY
#include <QtGui/QtGui>
#include "qioswindow.h"
QIOSPlatformAccessibility::QIOSPlatformAccessibility()
{}
QIOSPlatformAccessibility::~QIOSPlatformAccessibility()
{}
void invalidateCache(QAccessibleInterface *iface)
{
if (!iface || !iface->isValid()) {
qWarning() << "invalid accessible interface: " << iface;
return;
}
// This will invalidate everything regardless of what window the
// interface belonged to. We might want to revisit this strategy later.
// (Therefore this function still takes the interface as argument)
// It is also responsible for the bug that focus gets temporary lost
// when items get added or removed from the screen
foreach (QWindow *win, QGuiApplication::topLevelWindows()) {
if (win && win->handle()) {
QT_PREPEND_NAMESPACE(QIOSWindow) *window = static_cast<QT_PREPEND_NAMESPACE(QIOSWindow) *>(win->handle());
window->clearAccessibleCache();
}
}
}
void QIOSPlatformAccessibility::notifyAccessibilityUpdate(QAccessibleEvent *event)
{
if (!isActive() || !event->accessibleInterface())
return;
switch (event->type()) {
case QAccessible::ObjectCreated:
case QAccessible::ObjectShow:
case QAccessible::ObjectHide:
case QAccessible::ObjectDestroyed:
invalidateCache(event->accessibleInterface());
break;
default:
break;
}
}
#endif
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