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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include <QtTest>
class tst_QTouchEventWidget : public QWidget
{
public:
bool seenTouchBegin, seenTouchUpdate, seenTouchEnd;
bool acceptTouchBegin, acceptTouchUpdate, acceptTouchEnd;
tst_QTouchEventWidget()
: QWidget()
{
reset();
}
void reset()
{
seenTouchBegin = seenTouchUpdate = seenTouchEnd = false;
acceptTouchBegin = acceptTouchUpdate = acceptTouchEnd = true;
}
bool event(QEvent *event)
{
switch (event->type()) {
case QEvent::TouchBegin:
if (seenTouchBegin) qWarning("TouchBegin: already seen a TouchBegin");
if (seenTouchUpdate) qWarning("TouchBegin: TouchUpdate cannot happen before TouchBegin");
if (seenTouchEnd) qWarning("TouchBegin: TouchEnd cannot happen before TouchBegin");
seenTouchBegin = !seenTouchBegin && !seenTouchUpdate && !seenTouchEnd;
event->setAccepted(acceptTouchBegin);
break;
case QEvent::TouchUpdate:
if (!seenTouchBegin) qWarning("TouchUpdate: have not seen TouchBegin");
if (seenTouchEnd) qWarning("TouchUpdate: TouchEnd cannot happen before TouchUpdate");
seenTouchUpdate = seenTouchBegin && !seenTouchEnd;
event->setAccepted(acceptTouchUpdate);
break;
case QEvent::TouchEnd:
if (!seenTouchBegin) qWarning("TouchEnd: have not seen TouchBegin");
if (seenTouchEnd) qWarning("TouchEnd: already seen a TouchEnd");
seenTouchEnd = seenTouchBegin && !seenTouchEnd;
event->setAccepted(acceptTouchEnd);
break;
default:
return QWidget::event(event);
}
return true;
}
};
class tst_QTouchEvent : public QObject
{
Q_OBJECT
public:
tst_QTouchEvent() { }
~tst_QTouchEvent() { }
private slots:
void touchDisabledByDefault();
void touchEventAcceptedByDefault();
void touchBeginPropagatesWhenIgnored();
void touchUpdateAndEndNeverPropagate();
};
void tst_QTouchEvent::touchDisabledByDefault()
{
// the widget attribute is not enabled by default
QWidget widget;
QVERIFY(!widget.testAttribute(Qt::WA_AcceptTouchEvents));
// events should not be accepted since they are not enabled
QList<QTouchEvent::TouchPoint> touchPoints;
touchPoints.append(QTouchEvent::TouchPoint(0));
QTouchEvent touchEvent(QEvent::TouchBegin,
Qt::NoModifier,
Qt::TouchPointPressed,
touchPoints);
bool res = QApplication::sendEvent(&widget, &touchEvent);
QVERIFY(!res);
QVERIFY(!touchEvent.isAccepted());
}
void tst_QTouchEvent::touchEventAcceptedByDefault()
{
// enabling touch events should automatically accept touch events
QWidget widget;
widget.setAttribute(Qt::WA_AcceptTouchEvents);
// QWidget doesn't handle touch event by default, so sending it fails
// (but the event is accepted)
QList<QTouchEvent::TouchPoint> touchPoints;
touchPoints.append(QTouchEvent::TouchPoint(0));
QTouchEvent touchEvent(QEvent::TouchBegin,
Qt::NoModifier,
Qt::TouchPointPressed,
touchPoints);
bool res = QApplication::sendEvent(&widget, &touchEvent);
QVERIFY(!res);
QVERIFY(touchEvent.isAccepted());
// tst_QTouchEventWidget does handle, sending succeeds
tst_QTouchEventWidget touchWidget;
touchWidget.setAttribute(Qt::WA_AcceptTouchEvents);
touchEvent.ignore();
res = QApplication::sendEvent(&touchWidget, &touchEvent);
QVERIFY(res);
QVERIFY(touchEvent.isAccepted());
}
void tst_QTouchEvent::touchBeginPropagatesWhenIgnored()
{
tst_QTouchEventWidget window, child, grandchild;
child.setParent(&window);
grandchild.setParent(&child);
// all widgets accept touch events, grandchild ignores, so child sees the event, but not window
window.setAttribute(Qt::WA_AcceptTouchEvents);
child.setAttribute(Qt::WA_AcceptTouchEvents);
grandchild.setAttribute(Qt::WA_AcceptTouchEvents);
grandchild.acceptTouchBegin = false;
QList<QTouchEvent::TouchPoint> touchPoints;
touchPoints.append(QTouchEvent::TouchPoint(0));
QTouchEvent touchEvent(QEvent::TouchBegin,
Qt::NoModifier,
Qt::TouchPointPressed,
touchPoints);
bool res = QApplication::sendEvent(&grandchild, &touchEvent);
QVERIFY(res);
QVERIFY(touchEvent.isAccepted());
QVERIFY(grandchild.seenTouchBegin);
QVERIFY(child.seenTouchBegin);
QVERIFY(!window.seenTouchBegin);
// disable touch on grandchild. even though it doesn't accept it, child should still get the
// TouchBegin
grandchild.reset();
child.reset();
window.reset();
grandchild.setAttribute(Qt::WA_AcceptTouchEvents, false);
touchEvent.ignore();
res = QApplication::sendEvent(&grandchild, &touchEvent);
QVERIFY(res);
QVERIFY(touchEvent.isAccepted());
QVERIFY(!grandchild.seenTouchBegin);
QVERIFY(child.seenTouchBegin);
QVERIFY(!window.seenTouchBegin);
}
void tst_QTouchEvent::touchUpdateAndEndNeverPropagate()
{
tst_QTouchEventWidget window, child;
child.setParent(&window);
window.setAttribute(Qt::WA_AcceptTouchEvents);
child.setAttribute(Qt::WA_AcceptTouchEvents);
child.acceptTouchUpdate = false;
child.acceptTouchEnd = false;
QList<QTouchEvent::TouchPoint> touchPoints;
touchPoints.append(QTouchEvent::TouchPoint(0));
QTouchEvent touchBeginEvent(QEvent::TouchBegin,
Qt::NoModifier,
Qt::TouchPointPressed,
touchPoints);
bool res = QApplication::sendEvent(&child, &touchBeginEvent);
QVERIFY(res);
QVERIFY(touchBeginEvent.isAccepted());
QVERIFY(child.seenTouchBegin);
QVERIFY(!window.seenTouchBegin);
// send the touch update to the child, but ignore it, it doesn't propagate
QTouchEvent touchUpdateEvent(QEvent::TouchUpdate,
Qt::NoModifier,
Qt::TouchPointMoved,
touchPoints);
res = QApplication::sendEvent(&child, &touchUpdateEvent);
QVERIFY(res);
QVERIFY(!touchUpdateEvent.isAccepted());
QVERIFY(child.seenTouchUpdate);
QVERIFY(!window.seenTouchUpdate);
// send the touch end, same thing should happen as with touch update
QTouchEvent touchEndEvent(QEvent::TouchEnd,
Qt::NoModifier,
Qt::TouchPointReleased,
touchPoints);
res = QApplication::sendEvent(&child, &touchEndEvent);
QVERIFY(res);
QVERIFY(!touchEndEvent.isAccepted());
QVERIFY(child.seenTouchEnd);
QVERIFY(!window.seenTouchEnd);
}
QTEST_MAIN(tst_QTouchEvent)
#include "tst_qtouchevent.moc"
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