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// 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
#include "qaccessibleobject.h"
#if QT_CONFIG(accessibility)
#include <QtGui/QGuiApplication>
#include <QtGui/QWindow>
#include "qpointer.h"
#include "qmetaobject.h"
QT_BEGIN_NAMESPACE
class QAccessibleObjectPrivate
{
public:
QPointer<QObject> object;
};
/*!
\class QAccessibleObject
\brief The QAccessibleObject class implements parts of the
QAccessibleInterface for QObjects.
\ingroup accessibility
\inmodule QtGui
This class is part of \l {Accessibility for QWidget Applications}.
This class is mainly provided for convenience. All subclasses of
the QAccessibleInterface that provide implementations of non-widget objects
should use this class as their base class.
\sa QAccessible, QAccessibleWidget
*/
/*!
Creates a QAccessibleObject for \a object.
*/
QAccessibleObject::QAccessibleObject(QObject *object)
{
d = new QAccessibleObjectPrivate;
d->object = object;
}
/*!
Destroys the QAccessibleObject.
This only happens when a call to release() decrements the internal
reference counter to zero.
*/
QAccessibleObject::~QAccessibleObject()
{
delete d;
}
/*!
\reimp
*/
QObject *QAccessibleObject::object() const
{
return d->object;
}
/*!
\reimp
*/
bool QAccessibleObject::isValid() const
{
return !d->object.isNull();
}
/*! \reimp */
QRect QAccessibleObject::rect() const
{
return QRect();
}
/*! \reimp */
void QAccessibleObject::setText(QAccessible::Text, const QString &)
{
}
/*! \reimp */
QAccessibleInterface *QAccessibleObject::childAt(int x, int y) const
{
for (int i = 0; i < childCount(); ++i) {
QAccessibleInterface *childIface = child(i);
Q_ASSERT(childIface);
if (childIface->isValid() && childIface->rect().contains(x,y))
return childIface;
}
return nullptr;
}
/*!
\class QAccessibleApplication
\brief The QAccessibleApplication class implements the QAccessibleInterface for QApplication.
\internal
\ingroup accessibility
*/
/*!
Creates a QAccessibleApplication for the QApplication object referenced by qApp.
*/
QAccessibleApplication::QAccessibleApplication()
: QAccessibleObject(qApp)
{
}
QWindow *QAccessibleApplication::window() const
{
// an application can have several windows, and AFAIK we don't need
// to notify about changes on the application.
return nullptr;
}
// all toplevel windows except popups and the desktop
static QObjectList topLevelObjects()
{
QObjectList list;
const QWindowList tlw(QGuiApplication::topLevelWindows());
for (int i = 0; i < tlw.count(); ++i) {
QWindow *w = tlw.at(i);
if (w->type() != Qt::Popup && w->type() != Qt::Desktop) {
if (QAccessibleInterface *root = w->accessibleRoot()) {
if (root->object())
list.append(root->object());
}
}
}
return list;
}
/*! \reimp */
int QAccessibleApplication::childCount() const
{
return topLevelObjects().count();
}
/*! \reimp */
int QAccessibleApplication::indexOfChild(const QAccessibleInterface *child) const
{
if (!child)
return -1;
const QObjectList tlw(topLevelObjects());
return tlw.indexOf(child->object());
}
QAccessibleInterface *QAccessibleApplication::parent() const
{
return nullptr;
}
QAccessibleInterface *QAccessibleApplication::child(int index) const
{
const QObjectList tlo(topLevelObjects());
if (index >= 0 && index < tlo.count())
return QAccessible::queryAccessibleInterface(tlo.at(index));
return nullptr;
}
/*! \reimp */
QAccessibleInterface *QAccessibleApplication::focusChild() const
{
if (QWindow *window = QGuiApplication::focusWindow())
return window->accessibleRoot();
return nullptr;
}
/*! \reimp */
QString QAccessibleApplication::text(QAccessible::Text t) const
{
switch (t) {
case QAccessible::Name:
return QGuiApplication::applicationName();
case QAccessible::Description:
return QGuiApplication::applicationFilePath();
default:
break;
}
return QString();
}
/*! \reimp */
QAccessible::Role QAccessibleApplication::role() const
{
return QAccessible::Application;
}
/*! \reimp */
QAccessible::State QAccessibleApplication::state() const
{
return QAccessible::State();
}
QT_END_NAMESPACE
#endif // QT_CONFIG(accessibility)
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