qt5base-lts/tests/auto/widgets/util/qscroller/tst_qscroller.cpp

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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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#include <QtGui>
#include <QtWidgets>
#include <QtTest>
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#include <QtGui/private/qevent_p.h>
#include <qpa/qwindowsysteminterface.h>
// #include <QDebug>
class tst_QScrollerWidget : public QWidget
{
public:
tst_QScrollerWidget()
: QWidget()
{
reset();
}
void reset()
{
receivedPrepare = false;
receivedScroll = false;
receivedFirst = false;
receivedLast = false;
receivedOvershoot = false;
}
bool event(QEvent *e) override
{
switch (e->type()) {
case QEvent::Gesture:
e->setAccepted(false); // better reject the event or QGestureManager will make trouble
return false;
case QEvent::ScrollPrepare:
{
receivedPrepare = true;
QScrollPrepareEvent *se = static_cast<QScrollPrepareEvent *>(e);
se->setViewportSize(QSizeF(100,100));
se->setContentPosRange(scrollArea);
se->setContentPos(scrollPosition);
se->accept();
return true;
}
case QEvent::Scroll:
{
receivedScroll = true;
QScrollEvent *se = static_cast<QScrollEvent *>(e);
// qDebug() << "Scroll for"<<this<<"pos"<<se->scrollPos()<<"ov"<<se->overshoot()<<"first"<<se->isFirst()<<"last"<<se->isLast();
if (se->scrollState() == QScrollEvent::ScrollStarted)
receivedFirst = true;
if (se->scrollState() == QScrollEvent::ScrollFinished)
receivedLast = true;
currentPos = se->contentPos();
overshoot = se->overshootDistance();
if (!qFuzzyCompare(overshoot.x() + 1.0, 1.0) ||
!qFuzzyCompare(overshoot.y() + 1.0, 1.0))
receivedOvershoot = true;
return true;
}
default:
return QObject::event(e);
}
}
QRectF scrollArea;
QPointF scrollPosition;
bool receivedPrepare;
bool receivedScroll;
bool receivedFirst;
bool receivedLast;
bool receivedOvershoot;
QPointF currentPos;
QPointF overshoot;
};
class tst_QScroller : public QObject
{
Q_OBJECT
public:
tst_QScroller() { }
~tst_QScroller() { }
private:
void kineticScroll(tst_QScrollerWidget *sw, QPointF from, QPoint touchStart, QPoint touchUpdate, QPoint touchEnd);
void kineticScrollNoTest(tst_QScrollerWidget *sw, QPointF from, QPoint touchStart, QPoint touchUpdate, QPoint touchEnd);
private slots:
void staticScrollers();
void scrollerProperties();
void scrollTo();
void scroll();
void overshoot();
void multipleWindows();
private:
Introduce QInputDevice hierarchy; replace QTouchDevice We have seen during the Qt 5 series that QMouseEvent::source() does not provide enough information: if it is synthesized, it could have come from any device for which mouse events are synthesized, not only from a touchscreen. By providing in every QInputEvent as complete information about the actual source device as possible, we will enable very fine-tuned behavior in the object that handles each event. Further, we would like to support multiple keyboards, pointing devices, and named groups of devices that are known as "seats" in Wayland. In Qt 5, QPA plugins registered each touchscreen as it was discovered. Now we extend this pattern to all input devices. This new requirement can be implemented gradually; for now, if a QTWSI input event is received wtihout a device pointer, a default "core" device will be created on-the-fly, and a warning emitted. In Qt 5, QTouchEvent::TouchPoint::id() was forced to be unique even when multiple devices were in use simultaneously. Now that each event identifies the device it came from, this hack is no longer needed. A stub of the new QPointerEvent is added; it will be developed further in subsequent patches. [ChangeLog][QtGui][QInputEvent] Every QInputEvent now carries a pointer to an instance of QInputDevice, or the subclass QPointingDevice in case of mouse, touch and tablet events. Each platform plugin is expected to create the device instances, register them, and provide valid pointers with all input events. If this is not done, warnings are emitted and default devices are created as necessary. When the device has accurate information, it provides the opportunity to fine-tune behavior depending on device type and capabilities: for example if a QMouseEvent is synthesized from a touchscreen, the recipient can see which touchscreen it came from. Each device also has a seatName to distinguish users on multi-user windowing systems. Touchpoint IDs are no longer unique on their own, but the combination of ID and device is. Fixes: QTBUG-46412 Fixes: QTBUG-72167 Task-number: QTBUG-69433 Task-number: QTBUG-52430 Change-Id: I933fb2b86182efa722037b7a33e404c5daf5292a Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
2019-05-31 06:38:16 +00:00
QPointingDevice *m_touchScreen = QTest::createTouchDevice();
};
/*! \internal
Generates touchBegin, touchUpdate and touchEnd events to trigger scrolling.
Tests some in between states but does not wait until scrolling is finished.
*/
void tst_QScroller::kineticScroll(tst_QScrollerWidget *sw, QPointF from, QPoint touchStart, QPoint touchUpdate, QPoint touchEnd)
{
sw->scrollPosition = from;
sw->currentPos= from;
QScroller *s1 = QScroller::scroller(sw);
QCOMPARE(s1->state(), QScroller::Inactive);
QScrollerProperties sp1 = QScroller::scroller(sw)->scrollerProperties();
// send the touch begin event
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QMutableEventPoint touchPoint(0);
touchPoint.setState(QEventPoint::State::Pressed);
touchPoint.setPosition(touchStart);
touchPoint.setScenePosition(touchStart);
touchPoint.setGlobalPosition(touchStart);
QTouchEvent touchEvent1(QEvent::TouchBegin,
m_touchScreen,
Qt::NoModifier,
(QList<QTouchEvent::TouchPoint>() << touchPoint));
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QApplication::sendEvent(sw, &touchEvent1);
QCOMPARE(s1->state(), QScroller::Pressed);
// send the touch update far enough to trigger a scroll
QTest::qWait(200); // we need to wait a little or else the speed would be infinite. now we have around 500 pixel per second.
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touchPoint.setPosition(touchUpdate);
touchPoint.setScenePosition(touchUpdate);
touchPoint.setGlobalPosition(touchUpdate);
touchPoint.setState(QEventPoint::State::Updated);
QTouchEvent touchEvent2(QEvent::TouchUpdate,
m_touchScreen,
Qt::NoModifier,
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(QList<QEventPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent2);
QCOMPARE(s1->state(), QScroller::Dragging);
QCOMPARE(sw->receivedPrepare, true);
QTRY_COMPARE(sw->receivedFirst, true);
QCOMPARE(sw->receivedScroll, true);
QCOMPARE(sw->receivedOvershoot, false);
// note that the scrolling goes in a different direction than the mouse move
QPoint calculatedPos = from.toPoint() - touchUpdate - touchStart;
QVERIFY(qAbs(sw->currentPos.x() - calculatedPos.x()) < 1.0);
QVERIFY(qAbs(sw->currentPos.y() - calculatedPos.y()) < 1.0);
// send the touch end
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touchPoint.setPosition(touchEnd);
touchPoint.setScenePosition(touchEnd);
touchPoint.setGlobalPosition(touchEnd);
touchPoint.setState(QEventPoint::State::Released);
QTouchEvent touchEvent5(QEvent::TouchEnd,
m_touchScreen,
Qt::NoModifier,
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(QList<QEventPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent5);
}
/*! \internal
Generates touchBegin, touchUpdate and touchEnd events to trigger scrolling.
This function does not have any in between tests, it does not expect the scroller to actually scroll.
*/
void tst_QScroller::kineticScrollNoTest(tst_QScrollerWidget *sw, QPointF from, QPoint touchStart, QPoint touchUpdate, QPoint touchEnd)
{
sw->scrollPosition = from;
sw->currentPos = from;
QScroller *s1 = QScroller::scroller(sw);
QCOMPARE(s1->state(), QScroller::Inactive);
QScrollerProperties sp1 = s1->scrollerProperties();
int fps = 60;
// send the touch begin event
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QMutableEventPoint touchPoint(0);
touchPoint.setState(QEventPoint::State::Pressed);
touchPoint.setPosition(touchStart);
touchPoint.setScenePosition(touchStart);
touchPoint.setGlobalPosition(touchStart);
QTouchEvent touchEvent1(QEvent::TouchBegin,
m_touchScreen,
Qt::NoModifier,
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(QList<QEventPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent1);
// send the touch update far enough to trigger a scroll
QTest::qWait(200); // we need to wait a little or else the speed would be infinite. now we have around 500 pixel per second.
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touchPoint.setState(QEventPoint::State::Updated);
touchPoint.setPosition(touchUpdate);
touchPoint.setScenePosition(touchUpdate);
touchPoint.setGlobalPosition(touchUpdate);
QTouchEvent touchEvent2(QEvent::TouchUpdate,
m_touchScreen,
Qt::NoModifier,
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(QList<QEventPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent2);
QTest::qWait(1000 / fps * 2); // wait until the first scroll move
// send the touch end
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touchPoint.setState(QEventPoint::State::Released);
touchPoint.setPosition(touchEnd);
touchPoint.setScenePosition(touchEnd);
touchPoint.setGlobalPosition(touchEnd);
QTouchEvent touchEvent5(QEvent::TouchEnd,
m_touchScreen,
Qt::NoModifier,
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(QList<QEventPoint>() << touchPoint));
QApplication::sendEvent(sw, &touchEvent5);
}
void tst_QScroller::staticScrollers()
{
// scrollers
{
QObject *o1 = new QObject(this);
QObject *o2 = new QObject(this);
// get scroller for object
QScroller *s1 = QScroller::scroller(o1);
QScroller *s2 = QScroller::scroller(o2);
QVERIFY(s1);
QVERIFY(s2);
QVERIFY(s1 != s2);
QVERIFY(!QScroller::scroller(static_cast<const QObject*>(0)));
QCOMPARE(QScroller::scroller(o1), s1);
delete o1;
delete o2;
}
// the same for properties
{
QObject *o1 = new QObject(this);
QObject *o2 = new QObject(this);
// get scroller for object
QScrollerProperties sp1 = QScroller::scroller(o1)->scrollerProperties();
QScrollerProperties sp2 = QScroller::scroller(o2)->scrollerProperties();
// default properties should be the same
QCOMPARE(sp1, sp2);
QCOMPARE(QScroller::scroller(o1)->scrollerProperties(), sp1);
delete o1;
delete o2;
}
}
void tst_QScroller::scrollerProperties()
{
QObject *o1 = new QObject(this);
QScrollerProperties sp1 = QScroller::scroller(o1)->scrollerProperties();
QScrollerProperties::ScrollMetric metrics[] =
{
QScrollerProperties::MousePressEventDelay, // qreal [s]
QScrollerProperties::DragStartDistance, // qreal [m]
QScrollerProperties::DragVelocitySmoothingFactor, // qreal [0..1/s] (complex calculation involving time) v = v_new* DASF + v_old * (1-DASF)
QScrollerProperties::AxisLockThreshold, // qreal [0..1] atan(|min(dx,dy)|/|max(dx,dy)|)
QScrollerProperties::DecelerationFactor, // slope of the curve
QScrollerProperties::MinimumVelocity, // qreal [m/s]
QScrollerProperties::MaximumVelocity, // qreal [m/s]
QScrollerProperties::MaximumClickThroughVelocity, // qreal [m/s]
QScrollerProperties::AcceleratingFlickMaximumTime, // qreal [s]
QScrollerProperties::AcceleratingFlickSpeedupFactor, // qreal [1..]
QScrollerProperties::SnapPositionRatio, // qreal [0..1]
QScrollerProperties::SnapTime, // qreal [s]
QScrollerProperties::OvershootDragResistanceFactor, // qreal [0..1]
QScrollerProperties::OvershootDragDistanceFactor, // qreal [0..1]
QScrollerProperties::OvershootScrollDistanceFactor, // qreal [0..1]
QScrollerProperties::OvershootScrollTime, // qreal [s]
};
for (unsigned int i = 0; i < sizeof(metrics) / sizeof(metrics[0]); i++) {
sp1.setScrollMetric(metrics[i], 0.9);
QCOMPARE(sp1.scrollMetric(metrics[i]).toDouble(), 0.9);
}
sp1.setScrollMetric(QScrollerProperties::ScrollingCurve, QEasingCurve(QEasingCurve::OutQuart));
QCOMPARE(sp1.scrollMetric(QScrollerProperties::ScrollingCurve).toEasingCurve().type(), QEasingCurve::OutQuart);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOff));
QCOMPARE(sp1.scrollMetric(QScrollerProperties::HorizontalOvershootPolicy).value<QScrollerProperties::OvershootPolicy>(), QScrollerProperties::OvershootAlwaysOff);
sp1.setScrollMetric(QScrollerProperties::VerticalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOn));
QCOMPARE(sp1.scrollMetric(QScrollerProperties::VerticalOvershootPolicy).value<QScrollerProperties::OvershootPolicy>(), QScrollerProperties::OvershootAlwaysOn);
sp1.setScrollMetric(QScrollerProperties::FrameRate, QVariant::fromValue(QScrollerProperties::Fps20));
QCOMPARE(sp1.scrollMetric(QScrollerProperties::FrameRate).value<QScrollerProperties::FrameRates>(), QScrollerProperties::Fps20);
}
void tst_QScroller::scrollTo()
{
QScopedPointer<tst_QScrollerWidget> sw(new tst_QScrollerWidget);
sw->show();
QApplication::setActiveWindow(sw.data());
if (!QTest::qWaitForWindowExposed(sw.data()) || !QTest::qWaitForWindowActive(sw.data()))
QSKIP("Failed to show and activate window");
sw->scrollArea = QRectF(0, 0, 1000, 1000);
sw->scrollPosition = QPointF(500, 500);
QScroller *s1 = QScroller::scroller(sw.data());
QCOMPARE(s1->state(), QScroller::Inactive);
// a normal scroll
s1->scrollTo(QPointF(100,100), 100);
QTest::qWait(200);
QTRY_COMPARE(sw->receivedPrepare, true);
QCOMPARE(sw->receivedScroll, true);
QCOMPARE(sw->receivedFirst, true);
QCOMPARE(sw->receivedLast, true);
QCOMPARE(sw->receivedOvershoot, false);
QTRY_VERIFY(qFuzzyCompare(sw->currentPos.x(), 100));
QVERIFY(qFuzzyCompare(sw->currentPos.y(), 100));
}
void tst_QScroller::scroll()
{
#if QT_CONFIG(gestures) && QT_CONFIG(scroller)
// -- good case. normal scroll
QScopedPointer<tst_QScrollerWidget> sw(new tst_QScrollerWidget());
sw->scrollArea = QRectF(0, 0, 1000, 1000);
QScroller::grabGesture(sw.data(), QScroller::TouchGesture);
sw->setGeometry(100, 100, 400, 300);
sw->show();
QApplication::setActiveWindow(sw.data());
if (!QTest::qWaitForWindowExposed(sw.data()) || !QTest::qWaitForWindowActive(sw.data()))
QSKIP("Failed to show and activate window");
QScroller *s1 = QScroller::scroller(sw.data());
kineticScroll(sw.data(), QPointF(500, 500), QPoint(0, 0), QPoint(100, 100), QPoint(200, 200));
// now we should be scrolling
QTRY_COMPARE(s1->state(), QScroller::Scrolling);
// wait until finished, check that no further first scroll is sent
sw->receivedFirst = false;
sw->receivedScroll = false;
QTRY_VERIFY(s1->state() != QScroller::Scrolling);
QCOMPARE(sw->receivedFirst, false);
QCOMPARE(sw->receivedScroll, true);
QCOMPARE(sw->receivedLast, true);
QVERIFY(sw->currentPos.x() < 400);
QVERIFY(sw->currentPos.y() < 400);
// -- try to scroll when nothing to scroll
sw->reset();
sw->scrollArea = QRectF(0, 0, 0, 1000);
kineticScrollNoTest(sw.data(), QPointF(0, 500), QPoint(0, 0), QPoint(100, 0), QPoint(200, 0));
QTRY_COMPARE(s1->state(), QScroller::Inactive);
QCOMPARE(sw->currentPos.x(), 0.0);
QCOMPARE(sw->currentPos.y(), 500.0);
#endif
}
void tst_QScroller::overshoot()
{
#if QT_CONFIG(gestures) && QT_CONFIG(scroller)
QScopedPointer<tst_QScrollerWidget> sw(new tst_QScrollerWidget);
sw->scrollArea = QRectF(0, 0, 1000, 1000);
QScroller::grabGesture(sw.data(), QScroller::TouchGesture);
sw->setGeometry(100, 100, 400, 300);
sw->show();
QApplication::setActiveWindow(sw.data());
if (!QTest::qWaitForWindowExposed(sw.data()) || !QTest::qWaitForWindowActive(sw.data()))
QSKIP("Failed to show and activate window");
QScroller *s1 = QScroller::scroller(sw.data());
QScrollerProperties sp1 = s1->scrollerProperties();
sp1.setScrollMetric(QScrollerProperties::OvershootDragResistanceFactor, 0.5);
sp1.setScrollMetric(QScrollerProperties::OvershootDragDistanceFactor, 0.2);
sp1.setScrollMetric(QScrollerProperties::OvershootScrollDistanceFactor, 0.2);
// -- try to scroll with overshoot (when scrollable good case)
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw.data(), QPointF(500, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
QTRY_COMPARE(s1->state(), QScroller::Inactive);
//qDebug() << "Overshoot fuzzy: "<<sw->currentPos;
QVERIFY(qFuzzyCompare(sw->currentPos.x(), 0));
QVERIFY(qFuzzyCompare(sw->currentPos.y(), 500));
QCOMPARE(sw->receivedOvershoot, true);
// -- try to scroll with overshoot (when scrollable bad case)
sw->reset();
sw->scrollArea = QRectF(0, 0, 0, 1000);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootWhenScrollable));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw.data(), QPointF(0, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
QTRY_COMPARE(s1->state(), QScroller::Inactive);
//qDebug() << "Overshoot fuzzy: "<<sw->currentPos;
QVERIFY(qFuzzyCompare(sw->currentPos.x(), 0));
QVERIFY(qFuzzyCompare(sw->currentPos.y(), 500));
QCOMPARE(sw->receivedOvershoot, false);
// -- try to scroll with overshoot (always on)
sw->reset();
sw->scrollArea = QRectF(0, 0, 0, 1000);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOn));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw.data(), QPointF(0, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
QTRY_COMPARE(s1->state(), QScroller::Inactive);
//qDebug() << "Overshoot fuzzy: "<<sw->currentPos;
QVERIFY(qFuzzyCompare(sw->currentPos.x(), 0));
QVERIFY(qFuzzyCompare(sw->currentPos.y(), 500));
QCOMPARE(sw->receivedOvershoot, true);
// -- try to scroll with overshoot (always off)
sw->reset();
sw->scrollArea = QRectF(0, 0, 1000, 1000);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOff));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw.data(), QPointF(500, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
QTRY_COMPARE(s1->state(), QScroller::Inactive);
QVERIFY(qFuzzyCompare(sw->currentPos.x(), 0));
QVERIFY(qFuzzyCompare(sw->currentPos.y(), 500));
QCOMPARE(sw->receivedOvershoot, false);
// -- try to scroll with overshoot (always on but max overshoot = 0)
sp1.setScrollMetric(QScrollerProperties::OvershootDragDistanceFactor, 0.0);
sp1.setScrollMetric(QScrollerProperties::OvershootScrollDistanceFactor, 0.0);
sw->reset();
sw->scrollArea = QRectF(0, 0, 1000, 1000);
sp1.setScrollMetric(QScrollerProperties::HorizontalOvershootPolicy, QVariant::fromValue(QScrollerProperties::OvershootAlwaysOn));
s1->setScrollerProperties(sp1);
kineticScrollNoTest(sw.data(), QPointF(500, 500), QPoint(0, 0), QPoint(400, 0), QPoint(490, 0));
QTRY_COMPARE(s1->state(), QScroller::Inactive);
QVERIFY(qFuzzyCompare(sw->currentPos.x(), 0));
QVERIFY(qFuzzyCompare(sw->currentPos.y(), 500));
QCOMPARE(sw->receivedOvershoot, false);
#endif
}
void tst_QScroller::multipleWindows()
{
#if QT_CONFIG(gestures) && QT_CONFIG(scroller)
QScopedPointer<tst_QScrollerWidget> sw1(new tst_QScrollerWidget);
sw1->scrollArea = QRectF(0, 0, 1000, 1000);
QScroller::grabGesture(sw1.data(), QScroller::TouchGesture);
sw1->setGeometry(100, 100, 400, 300);
QScroller *s1 = QScroller::scroller(sw1.data());
kineticScroll(sw1.data(), QPointF(500, 500), QPoint(0, 0), QPoint(100, 100), QPoint(200, 200));
// now we should be scrolling
QTRY_COMPARE(s1->state(), QScroller::Scrolling);
// That was fun! Do it again!
QScopedPointer<tst_QScrollerWidget> sw2(new tst_QScrollerWidget());
sw2->scrollArea = QRectF(0, 0, 1000, 1000);
QScroller::grabGesture(sw2.data(), QScroller::TouchGesture);
sw2->setGeometry(100, 100, 400, 300);
QScroller *s2 = QScroller::scroller(sw2.data());
kineticScroll(sw2.data(), QPointF(500, 500), QPoint(0, 0), QPoint(100, 100), QPoint(200, 200));
// now we should be scrolling
QTRY_COMPARE(s2->state(), QScroller::Scrolling);
// wait for both to stop
QTRY_VERIFY(s1->state() != QScroller::Scrolling);
QTRY_VERIFY(s2->state() != QScroller::Scrolling);
sw1.reset(); // destroy one window
sw2->reset(); // reset the other scroller's internal state
// make sure we can still scroll the remaining one without crashing (QTBUG-71232)
kineticScroll(sw2.data(), QPointF(500, 500), QPoint(0, 0), QPoint(100, 100), QPoint(200, 200));
#endif
}
QTEST_MAIN(tst_QScroller)
#include "tst_qscroller.moc"