qtdeclarative/tests/auto/quick/qquickwindow/tst_qquickwindow.cpp

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** This file is part of the test suite of the Qt Toolkit.
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#include <qtest.h>
#include <QDebug>
#include <QTouchEvent>
#include <QtQuick/QQuickItem>
#include <QtQuick/QQuickView>
#include <QtQuick/QQuickWindow>
#include <QtQml/QQmlEngine>
#include <QtQml/QQmlComponent>
#include <QtQuick/private/qquickrectangle_p.h>
#include <QtQuick/private/qquickloader_p.h>
#include "../../shared/util.h"
#include "../shared/visualtestutil.h"
#include "../shared/viewtestutil.h"
#include <QSignalSpy>
#include <private/qquickwindow_p.h>
#include <private/qguiapplication_p.h>
#include <QRunnable>
#include <QOpenGLFunctions>
#include <QSGRendererInterface>

struct TouchEventData {
    QEvent::Type type;
    QWidget *widget;
    QWindow *window;
    Qt::TouchPointStates states;
    QList<QTouchEvent::TouchPoint> touchPoints;
};

static QTouchEvent::TouchPoint makeTouchPoint(QQuickItem *item, const QPointF &p, const QPointF &lastPoint = QPointF())
{
    QPointF last = lastPoint.isNull() ? p : lastPoint;

    QTouchEvent::TouchPoint tp;

    tp.setPos(p);
    tp.setLastPos(last);
    tp.setScenePos(item->mapToScene(p));
    tp.setLastScenePos(item->mapToScene(last));
    tp.setScreenPos(item->window()->mapToGlobal(tp.scenePos().toPoint()));
    tp.setLastScreenPos(item->window()->mapToGlobal(tp.lastScenePos().toPoint()));
    return tp;
}

static TouchEventData makeTouchData(QEvent::Type type, QWindow *w, Qt::TouchPointStates states = 0,
                                    const QList<QTouchEvent::TouchPoint>& touchPoints = QList<QTouchEvent::TouchPoint>())
{
    TouchEventData d = { type, 0, w, states, touchPoints };
    return d;
}
static TouchEventData makeTouchData(QEvent::Type type, QWindow *w, Qt::TouchPointStates states, const QTouchEvent::TouchPoint &touchPoint)
{
    QList<QTouchEvent::TouchPoint> points;
    points << touchPoint;
    return makeTouchData(type, w, states, points);
}

#define COMPARE_TOUCH_POINTS(tp1, tp2) \
{ \
    QCOMPARE(tp1.pos(), tp2.pos()); \
    QCOMPARE(tp1.lastPos(), tp2.lastPos()); \
    QCOMPARE(tp1.scenePos(), tp2.scenePos()); \
    QCOMPARE(tp1.lastScenePos(), tp2.lastScenePos()); \
    QCOMPARE(tp1.screenPos(), tp2.screenPos()); \
    QCOMPARE(tp1.lastScreenPos(), tp2.lastScreenPos()); \
}

#define COMPARE_TOUCH_DATA(d1, d2) \
{ \
    QCOMPARE((int)d1.type, (int)d2.type); \
    QCOMPARE(d1.widget, d2.widget); \
    QCOMPARE((int)d1.states, (int)d2.states); \
    QCOMPARE(d1.touchPoints.count(), d2.touchPoints.count()); \
    for (int i=0; i<d1.touchPoints.count(); i++) { \
        COMPARE_TOUCH_POINTS(d1.touchPoints[i], d2.touchPoints[i]); \
    } \
}


class RootItemAccessor : public QQuickItem
{
    Q_OBJECT
public:
    RootItemAccessor()
        : m_rootItemDestroyed(false)
        , m_rootItem(0)
    {
    }
    Q_INVOKABLE QQuickItem *contentItem()
    {
        if (!m_rootItem) {
            QQuickWindowPrivate *c = QQuickWindowPrivate::get(window());
            m_rootItem = c->contentItem;
            QObject::connect(m_rootItem, SIGNAL(destroyed()), this, SLOT(rootItemDestroyed()));
        }
        return m_rootItem;
    }
    bool isRootItemDestroyed() {return m_rootItemDestroyed;}
public slots:
    void rootItemDestroyed() {
        m_rootItemDestroyed = true;
    }

private:
    bool m_rootItemDestroyed;
    QQuickItem *m_rootItem;
};

class TestTouchItem : public QQuickRectangle
{
    Q_OBJECT
public:
    TestTouchItem(QQuickItem *parent = 0)
        : QQuickRectangle(parent), acceptTouchEvents(true), acceptMouseEvents(true),
          mousePressId(0),
          spinLoopWhenPressed(false), touchEventCount(0)
    {
        border()->setWidth(1);
        setAcceptedMouseButtons(Qt::LeftButton);
        setFiltersChildMouseEvents(true);
    }

    void reset() {
        acceptTouchEvents = acceptMouseEvents = true;
        setEnabled(true);
        setVisible(true);

        lastEvent = makeTouchData(QEvent::None, window(), 0, QList<QTouchEvent::TouchPoint>());//CHECK_VALID

        lastVelocity = lastVelocityFromMouseMove = QVector2D();
        lastMousePos = QPointF();
        lastMouseCapabilityFlags = 0;
        touchEventCount = 0;
    }

    static void clearMousePressCounter()
    {
        mousePressNum = mouseMoveNum = mouseReleaseNum = 0;
    }

    void clearTouchEventCounter()
    {
        touchEventCount = 0;
    }

    bool acceptTouchEvents;
    bool acceptMouseEvents;
    TouchEventData lastEvent;
    int mousePressId;
    bool spinLoopWhenPressed;
    int touchEventCount;
    QVector2D lastVelocity;
    QVector2D lastVelocityFromMouseMove;
    QPointF lastMousePos;
    int lastMouseCapabilityFlags;

    void touchEvent(QTouchEvent *event) {
        if (!acceptTouchEvents) {
            event->ignore();
            return;
        }
        ++touchEventCount;
        lastEvent = makeTouchData(event->type(), event->window(), event->touchPointStates(), event->touchPoints());
        if (event->device()->capabilities().testFlag(QTouchDevice::Velocity) && !event->touchPoints().isEmpty()) {
            lastVelocity = event->touchPoints().first().velocity();
        } else {
            lastVelocity = QVector2D();
        }
        if (spinLoopWhenPressed && event->touchPointStates().testFlag(Qt::TouchPointPressed)) {
            QCoreApplication::processEvents();
        }
    }

    void mousePressEvent(QMouseEvent *e) {
        if (!acceptMouseEvents) {
            e->ignore();
            return;
        }
        mousePressId = ++mousePressNum;
        lastMousePos = e->pos();
        lastMouseCapabilityFlags = QGuiApplicationPrivate::mouseEventCaps(e);
    }

    void mouseMoveEvent(QMouseEvent *e) {
        if (!acceptMouseEvents) {
            e->ignore();
            return;
        }
        ++mouseMoveNum;
        lastVelocityFromMouseMove = QGuiApplicationPrivate::mouseEventVelocity(e);
        lastMouseCapabilityFlags = QGuiApplicationPrivate::mouseEventCaps(e);
        lastMousePos = e->pos();
    }

    void mouseReleaseEvent(QMouseEvent *e) {
        if (!acceptMouseEvents) {
            e->ignore();
            return;
        }
        ++mouseReleaseNum;
        lastMousePos = e->pos();
        lastMouseCapabilityFlags = QGuiApplicationPrivate::mouseEventCaps(e);
    }

    bool childMouseEventFilter(QQuickItem *, QEvent *event) {
        // TODO Is it a bug if a QTouchEvent comes here?
        if (event->type() == QEvent::MouseButtonPress)
            mousePressId = ++mousePressNum;
        return false;
    }

    static int mousePressNum, mouseMoveNum, mouseReleaseNum;
};

int TestTouchItem::mousePressNum = 0;
int TestTouchItem::mouseMoveNum = 0;
int TestTouchItem::mouseReleaseNum = 0;

class EventFilter : public QObject
{
public:
    bool eventFilter(QObject *watched, QEvent *event) {
        Q_UNUSED(watched);
        events.append(event->type());
        return false;
    }

    QList<int> events;
};

class ConstantUpdateItem : public QQuickItem
{
Q_OBJECT
public:
    ConstantUpdateItem(QQuickItem *parent = 0) : QQuickItem(parent), iterations(0) {setFlag(ItemHasContents);}

    int iterations;
protected:
    QSGNode* updatePaintNode(QSGNode *, UpdatePaintNodeData *){
        iterations++;
        update();
        return 0;
    }
};

class tst_qquickwindow : public QQmlDataTest
{
    Q_OBJECT
public:
    tst_qquickwindow()
      : touchDevice(QTest::createTouchDevice())
      , touchDeviceWithVelocity(QTest::createTouchDevice())
    {
        QQuickWindow::setDefaultAlphaBuffer(true);
        touchDeviceWithVelocity->setCapabilities(QTouchDevice::Position | QTouchDevice::Velocity);
    }

private slots:
    void cleanup();
#ifndef QT_NO_OPENGL
    void openglContextCreatedSignal();
#endif
    void aboutToStopSignal();

    void constantUpdates();
    void constantUpdatesOnWindow_data();
    void constantUpdatesOnWindow();
    void mouseFiltering();
    void headless();
    void noUpdateWhenNothingChanges();

    void touchEvent_basic();
    void touchEvent_propagation();
    void touchEvent_propagation_data();
    void touchEvent_cancel();
    void touchEvent_reentrant();
    void touchEvent_velocity();

    void mergeTouchPointLists_data();
    void mergeTouchPointLists();

    void mouseFromTouch_basic();

    void clearWindow();

    void qmlCreation();
    void clearColor();
    void defaultState();

    void grab_data();
    void grab();
    void multipleWindows();

    void animationsWhileHidden();

    void focusObject();
    void focusReason();

    void ignoreUnhandledMouseEvents();

    void ownershipRootItem();

    void hideThenDelete_data();
    void hideThenDelete();

    void showHideAnimate();

    void testExpose();

    void requestActivate();

    void testWindowVisibilityOrder();

    void blockClosing();
    void blockCloseMethod();

    void crashWhenHoverItemDeleted();

    void unloadSubWindow();
    void changeVisibilityInCompleted();

    void qobjectEventFilter_touch();
    void qobjectEventFilter_key();
    void qobjectEventFilter_mouse();

#ifndef QT_NO_CURSOR
    void cursor();
#endif

    void animatingSignal();

    void contentItemSize();

    void defaultSurfaceFormat();

    void attachedProperty();

    void testRenderJob();

    void testHoverChildMouseEventFilter();

    void pointerEventTypeAndPointCount();

private:
    QTouchDevice *touchDevice;
    QTouchDevice *touchDeviceWithVelocity;
};
#ifndef QT_NO_OPENGL
Q_DECLARE_METATYPE(QOpenGLContext *);
#endif
void tst_qquickwindow::cleanup()
{
    QVERIFY(QGuiApplication::topLevelWindows().isEmpty());
}
#ifndef QT_NO_OPENGL
void tst_qquickwindow::openglContextCreatedSignal()
{
    qRegisterMetaType<QOpenGLContext *>();

    QQuickWindow window;
    QSignalSpy spy(&window, SIGNAL(openglContextCreated(QOpenGLContext*)));

    window.setTitle(QTest::currentTestFunction());
    window.show();
    QTest::qWaitForWindowExposed(&window);

    if (window.rendererInterface()->graphicsApi() != QSGRendererInterface::OpenGL)
        QSKIP("Skipping OpenGL context test due to not running with OpenGL");

    QVERIFY(spy.size() > 0);

    QVariant ctx = spy.at(0).at(0);
    QCOMPARE(qvariant_cast<QOpenGLContext *>(ctx), window.openglContext());
}
#endif
void tst_qquickwindow::aboutToStopSignal()
{
    QQuickWindow window;
    window.setTitle(QTest::currentTestFunction());
    window.show();
    QTest::qWaitForWindowExposed(&window);

    QSignalSpy spy(&window, SIGNAL(sceneGraphAboutToStop()));

    window.hide();

    QTRY_VERIFY(spy.count() > 0);
}

//If the item calls update inside updatePaintNode, it should schedule another sync pass
void tst_qquickwindow::constantUpdates()
{
    QQuickWindow window;
    window.resize(250, 250);
    ConstantUpdateItem item(window.contentItem());
    window.setTitle(QTest::currentTestFunction());
    window.show();

    QSignalSpy beforeSpy(&window, SIGNAL(beforeSynchronizing()));
    QSignalSpy afterSpy(&window, SIGNAL(afterSynchronizing()));

    QTRY_VERIFY(item.iterations > 10);
    QTRY_VERIFY(beforeSpy.count() > 10);
    QTRY_VERIFY(afterSpy.count() > 10);
}

void tst_qquickwindow::constantUpdatesOnWindow_data()
{
    QTest::addColumn<bool>("blockedGui");
    QTest::addColumn<QByteArray>("signal");

    QQuickWindow window;
    window.setTitle(QTest::currentTestFunction());
    window.setGeometry(100, 100, 300, 200);
    window.show();
    QTest::qWaitForWindowExposed(&window);
    const bool threaded = QQuickWindowPrivate::get(&window)->context->thread() != QGuiApplication::instance()->thread();
    if (threaded) {
        QTest::newRow("blocked, beforeRender") << true << QByteArray(SIGNAL(beforeRendering()));
        QTest::newRow("blocked, afterRender") << true << QByteArray(SIGNAL(afterRendering()));
        QTest::newRow("blocked, swapped") << true << QByteArray(SIGNAL(frameSwapped()));
    }
    QTest::newRow("unblocked, beforeRender") << false << QByteArray(SIGNAL(beforeRendering()));
    QTest::newRow("unblocked, afterRender") << false << QByteArray(SIGNAL(afterRendering()));
    QTest::newRow("unblocked, swapped") << false << QByteArray(SIGNAL(frameSwapped()));
}

class FrameCounter : public QObject
{
    Q_OBJECT
public slots:
    void incr() { QMutexLocker locker(&m_mutex); ++m_counter; }
public:
    FrameCounter() : m_counter(0) {}
    int count() { QMutexLocker locker(&m_mutex); int x = m_counter; return x; }
private:
    int m_counter;
    QMutex m_mutex;
};

void tst_qquickwindow::constantUpdatesOnWindow()
{
    QFETCH(bool, blockedGui);
    QFETCH(QByteArray, signal);

    QQuickWindow window;
    window.setTitle(QTest::currentTestFunction());
    window.setGeometry(100, 100, 300, 200);

    bool ok = connect(&window, signal.constData(), &window, SLOT(update()), Qt::DirectConnection);
    Q_ASSERT(ok);
    window.show();
    QTest::qWaitForWindowExposed(&window);

    FrameCounter counter;
    connect(&window, SIGNAL(frameSwapped()), &counter, SLOT(incr()), Qt::DirectConnection);

    int frameCount = 10;
    QElapsedTimer timer;
    timer.start();
    if (blockedGui) {
        while (counter.count() < frameCount)
            QTest::qSleep(100);
        QVERIFY(counter.count() >= frameCount);
    } else {
        window.update();
        QTRY_VERIFY(counter.count() > frameCount);
    }
    window.hide();
}

void tst_qquickwindow::touchEvent_basic()
{
    TestTouchItem::clearMousePressCounter();

    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);
    window->setTitle(QTest::currentTestFunction());

    window->resize(250, 250);
    window->setPosition(100, 100);
    window->show();
    QVERIFY(QTest::qWaitForWindowActive(window));

    TestTouchItem *bottomItem = new TestTouchItem(window->contentItem());
    bottomItem->setObjectName("Bottom Item");
    bottomItem->setSize(QSizeF(150, 150));

    TestTouchItem *middleItem = new TestTouchItem(bottomItem);
    middleItem->setObjectName("Middle Item");
    middleItem->setPosition(QPointF(50, 50));
    middleItem->setSize(QSizeF(150, 150));

    TestTouchItem *topItem = new TestTouchItem(middleItem);
    topItem->setObjectName("Top Item");
    topItem->setPosition(QPointF(50, 50));
    topItem->setSize(QSizeF(150, 150));

    QPointF pos(10, 10);

    // press single point
    QTest::touchEvent(window, touchDevice).press(0, topItem->mapToScene(pos).toPoint(),window);
    QQuickTouchUtils::flush(window);
    QTRY_COMPARE(topItem->lastEvent.touchPoints.count(), 1);

    QVERIFY(middleItem->lastEvent.touchPoints.isEmpty());
    QVERIFY(bottomItem->lastEvent.touchPoints.isEmpty());
    // At one point this was failing with kwin (KDE window manager) because window->setPosition(100, 100)
    // would put the decorated window at that position rather than the window itself.
    COMPARE_TOUCH_DATA(topItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed, makeTouchPoint(topItem, pos)));
    topItem->reset();
    QTest::touchEvent(window, touchDevice).release(0, topItem->mapToScene(pos).toPoint(), window);

    // press multiple points
    QTest::touchEvent(window, touchDevice).press(0, topItem->mapToScene(pos).toPoint(), window)
            .press(1, bottomItem->mapToScene(pos).toPoint(), window);
    QQuickTouchUtils::flush(window);
    QCOMPARE(topItem->lastEvent.touchPoints.count(), 1);
    QVERIFY(middleItem->lastEvent.touchPoints.isEmpty());
    QCOMPARE(bottomItem->lastEvent.touchPoints.count(), 1);
    COMPARE_TOUCH_DATA(topItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed, makeTouchPoint(topItem, pos)));
    COMPARE_TOUCH_DATA(bottomItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed, makeTouchPoint(bottomItem, pos)));
    topItem->reset();
    bottomItem->reset();
    QTest::touchEvent(window, touchDevice).release(0, topItem->mapToScene(pos).toPoint(), window).release(1, bottomItem->mapToScene(pos).toPoint(), window);

    // touch point on top item moves to bottom item, but top item should still receive the event
    QTest::touchEvent(window, touchDevice).press(0, topItem->mapToScene(pos).toPoint(), window);
    QQuickTouchUtils::flush(window);
    QTest::touchEvent(window, touchDevice).move(0, bottomItem->mapToScene(pos).toPoint(), window);
    QQuickTouchUtils::flush(window);
    QCOMPARE(topItem->lastEvent.touchPoints.count(), 1);
    COMPARE_TOUCH_DATA(topItem->lastEvent, makeTouchData(QEvent::TouchUpdate, window, Qt::TouchPointMoved,
            makeTouchPoint(topItem, topItem->mapFromItem(bottomItem, pos), pos)));
    topItem->reset();
    QTest::touchEvent(window, touchDevice).release(0, bottomItem->mapToScene(pos).toPoint(), window);

    // touch point on bottom item moves to top item, but bottom item should still receive the event
    QTest::touchEvent(window, touchDevice).press(0, bottomItem->mapToScene(pos).toPoint(), window);
    QQuickTouchUtils::flush(window);
    QTest::touchEvent(window, touchDevice).move(0, topItem->mapToScene(pos).toPoint(), window);
    QQuickTouchUtils::flush(window);
    QCOMPARE(bottomItem->lastEvent.touchPoints.count(), 1);
    COMPARE_TOUCH_DATA(bottomItem->lastEvent, makeTouchData(QEvent::TouchUpdate, window, Qt::TouchPointMoved,
            makeTouchPoint(bottomItem, bottomItem->mapFromItem(topItem, pos), pos)));
    bottomItem->reset();
    QTest::touchEvent(window, touchDevice).release(0, bottomItem->mapToScene(pos).toPoint(), window);

    // a single stationary press on an item shouldn't cause an event
    QTest::touchEvent(window, touchDevice).press(0, topItem->mapToScene(pos).toPoint(), window);
    QQuickTouchUtils::flush(window);
    QTest::touchEvent(window, touchDevice).stationary(0)
            .press(1, bottomItem->mapToScene(pos).toPoint(), window);
    QQuickTouchUtils::flush(window);
    QCOMPARE(topItem->lastEvent.touchPoints.count(), 1);    // received press only, not stationary
    QVERIFY(middleItem->lastEvent.touchPoints.isEmpty());
    QCOMPARE(bottomItem->lastEvent.touchPoints.count(), 1);
    COMPARE_TOUCH_DATA(topItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed, makeTouchPoint(topItem, pos)));
    COMPARE_TOUCH_DATA(bottomItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed, makeTouchPoint(bottomItem, pos)));
    topItem->reset();
    bottomItem->reset();
    // cleanup: what is pressed must be released
    // Otherwise you will get an assertion failure:
    // ASSERT: "itemForTouchPointId.isEmpty()" in file items/qquickwindow.cpp
    QTest::touchEvent(window, touchDevice).release(0, pos.toPoint(), window).release(1, pos.toPoint(), window);
    QQuickTouchUtils::flush(window);

    // move touch point from top item to bottom, and release
    QTest::touchEvent(window, touchDevice).press(0, topItem->mapToScene(pos).toPoint(),window);
    QQuickTouchUtils::flush(window);
    QTest::touchEvent(window, touchDevice).release(0, bottomItem->mapToScene(pos).toPoint(),window);
    QQuickTouchUtils::flush(window);
    QCOMPARE(topItem->lastEvent.touchPoints.count(), 1);
    COMPARE_TOUCH_DATA(topItem->lastEvent, makeTouchData(QEvent::TouchEnd, window, Qt::TouchPointReleased,
            makeTouchPoint(topItem, topItem->mapFromItem(bottomItem, pos), pos)));
    topItem->reset();

    // release while another point is pressed
    QTest::touchEvent(window, touchDevice).press(0, topItem->mapToScene(pos).toPoint(),window)
            .press(1, bottomItem->mapToScene(pos).toPoint(), window);
    QQuickTouchUtils::flush(window);
    QTest::touchEvent(window, touchDevice).move(0, bottomItem->mapToScene(pos).toPoint(), window);
    QQuickTouchUtils::flush(window);
    QTest::touchEvent(window, touchDevice).release(0, bottomItem->mapToScene(pos).toPoint(), window)
                             .stationary(1);
    QQuickTouchUtils::flush(window);
    QCOMPARE(topItem->lastEvent.touchPoints.count(), 1);
    QVERIFY(middleItem->lastEvent.touchPoints.isEmpty());
    QCOMPARE(bottomItem->lastEvent.touchPoints.count(), 1);
    COMPARE_TOUCH_DATA(topItem->lastEvent, makeTouchData(QEvent::TouchEnd, window, Qt::TouchPointReleased,
            makeTouchPoint(topItem, topItem->mapFromItem(bottomItem, pos))));
    COMPARE_TOUCH_DATA(bottomItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed, makeTouchPoint(bottomItem, pos)));
    topItem->reset();
    bottomItem->reset();

    delete topItem;
    delete middleItem;
    delete bottomItem;
}

void tst_qquickwindow::touchEvent_propagation()
{
    TestTouchItem::clearMousePressCounter();

    QFETCH(bool, acceptTouchEvents);
    QFETCH(bool, acceptMouseEvents);
    QFETCH(bool, enableItem);
    QFETCH(bool, showItem);

    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);

    window->resize(250, 250);
    window->setPosition(100, 100);
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QVERIFY(QTest::qWaitForWindowActive(window));

    TestTouchItem *bottomItem = new TestTouchItem(window->contentItem());
    bottomItem->setObjectName("Bottom Item");
    bottomItem->setSize(QSizeF(150, 150));

    TestTouchItem *middleItem = new TestTouchItem(bottomItem);
    middleItem->setObjectName("Middle Item");
    middleItem->setPosition(QPointF(50, 50));
    middleItem->setSize(QSizeF(150, 150));

    TestTouchItem *topItem = new TestTouchItem(middleItem);
    topItem->setObjectName("Top Item");
    topItem->setPosition(QPointF(50, 50));
    topItem->setSize(QSizeF(150, 150));

    QPointF pos(10, 10);
    QPoint pointInBottomItem = bottomItem->mapToScene(pos).toPoint();  // (10, 10)
    QPoint pointInMiddleItem = middleItem->mapToScene(pos).toPoint();  // (60, 60) overlaps with bottomItem
    QPoint pointInTopItem = topItem->mapToScene(pos).toPoint();  // (110, 110) overlaps with bottom & top items

    // disable topItem
    topItem->acceptTouchEvents = acceptTouchEvents;
    topItem->acceptMouseEvents = acceptMouseEvents;
    topItem->setEnabled(enableItem);
    topItem->setVisible(showItem);

    // single touch to top item, should be received by middle item
    QTest::touchEvent(window, touchDevice).press(0, pointInTopItem, window);
    QTest::qWait(50);
    QVERIFY(topItem->lastEvent.touchPoints.isEmpty());
    QCOMPARE(middleItem->lastEvent.touchPoints.count(), 1);
    QVERIFY(bottomItem->lastEvent.touchPoints.isEmpty());
    COMPARE_TOUCH_DATA(middleItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed,
            makeTouchPoint(middleItem, middleItem->mapFromItem(topItem, pos))));
    QTest::touchEvent(window, touchDevice).release(0, pointInTopItem, window);

    // touch top and middle items, middle item should get both events
    QTest::touchEvent(window, touchDevice).press(0, pointInTopItem, window)
            .press(1, pointInMiddleItem, window);
    QTest::qWait(50);
    QVERIFY(topItem->lastEvent.touchPoints.isEmpty());
    QCOMPARE(middleItem->lastEvent.touchPoints.count(), 2);
    QVERIFY(bottomItem->lastEvent.touchPoints.isEmpty());
    COMPARE_TOUCH_DATA(middleItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed,
           (QList<QTouchEvent::TouchPoint>() << makeTouchPoint(middleItem, middleItem->mapFromItem(topItem, pos))
                                              << makeTouchPoint(middleItem, pos) )));
    QTest::touchEvent(window, touchDevice).release(0, pointInTopItem, window)
            .release(1, pointInMiddleItem, window);
    middleItem->reset();

    // disable middleItem as well
    middleItem->acceptTouchEvents = acceptTouchEvents;
    middleItem->acceptMouseEvents = acceptMouseEvents;
    middleItem->setEnabled(enableItem);
    middleItem->setVisible(showItem);

    // touch top and middle items, bottom item should get all events
    QTest::touchEvent(window, touchDevice).press(0, pointInTopItem, window)
            .press(1, pointInMiddleItem, window);
    QTest::qWait(50);
    QVERIFY(topItem->lastEvent.touchPoints.isEmpty());
    QVERIFY(middleItem->lastEvent.touchPoints.isEmpty());
    QCOMPARE(bottomItem->lastEvent.touchPoints.count(), 2);
    COMPARE_TOUCH_DATA(bottomItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed,
            (QList<QTouchEvent::TouchPoint>() << makeTouchPoint(bottomItem, bottomItem->mapFromItem(topItem, pos))
                                              << makeTouchPoint(bottomItem, bottomItem->mapFromItem(middleItem, pos)) )));
    bottomItem->reset();

    // disable bottom item as well
    bottomItem->acceptTouchEvents = acceptTouchEvents;
    bottomItem->setEnabled(enableItem);
    bottomItem->setVisible(showItem);
    QTest::touchEvent(window, touchDevice).release(0, pointInTopItem, window)
            .release(1, pointInMiddleItem, window);

    // no events should be received
    QTest::touchEvent(window, touchDevice).press(0, pointInTopItem, window)
            .press(1, pointInMiddleItem, window)
            .press(2, pointInBottomItem, window);
    QTest::qWait(50);
    QVERIFY(topItem->lastEvent.touchPoints.isEmpty());
    QVERIFY(middleItem->lastEvent.touchPoints.isEmpty());
    QVERIFY(bottomItem->lastEvent.touchPoints.isEmpty());
    QTest::touchEvent(window, touchDevice).release(0, pointInTopItem, window)
            .release(1, pointInMiddleItem, window)
            .release(2, pointInBottomItem, window);
    topItem->reset();
    middleItem->reset();
    bottomItem->reset();

    // disable middle item, touch on top item
    middleItem->acceptTouchEvents = acceptTouchEvents;
    middleItem->setEnabled(enableItem);
    middleItem->setVisible(showItem);
    QTest::touchEvent(window, touchDevice).press(0, pointInTopItem, window);
    QTest::qWait(50);
    if (!enableItem || !showItem) {
        // middle item is disabled or has 0 opacity, bottom item receives the event
        QVERIFY(topItem->lastEvent.touchPoints.isEmpty());
        QVERIFY(middleItem->lastEvent.touchPoints.isEmpty());
        QCOMPARE(bottomItem->lastEvent.touchPoints.count(), 1);
        COMPARE_TOUCH_DATA(bottomItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed,
                makeTouchPoint(bottomItem, bottomItem->mapFromItem(topItem, pos))));
    } else {
        // middle item ignores event, sends it to the top item (top-most child)
        QCOMPARE(topItem->lastEvent.touchPoints.count(), 1);
        QVERIFY(middleItem->lastEvent.touchPoints.isEmpty());
        QVERIFY(bottomItem->lastEvent.touchPoints.isEmpty());
        COMPARE_TOUCH_DATA(topItem->lastEvent, makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed,
                makeTouchPoint(topItem, pos)));
    }
    QTest::touchEvent(window, touchDevice).release(0, pointInTopItem, window);

    delete topItem;
    delete middleItem;
    delete bottomItem;
}

void tst_qquickwindow::touchEvent_propagation_data()
{
    QTest::addColumn<bool>("acceptTouchEvents");
    QTest::addColumn<bool>("acceptMouseEvents");
    QTest::addColumn<bool>("enableItem");
    QTest::addColumn<bool>("showItem");

    QTest::newRow("disable events") << false << false << true << true;
    QTest::newRow("disable item") << true << true << false << true;
    QTest::newRow("hide item") << true << true << true << false;
}

void tst_qquickwindow::touchEvent_cancel()
{
    TestTouchItem::clearMousePressCounter();

    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);

    window->resize(250, 250);
    window->setPosition(100, 100);
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QVERIFY(QTest::qWaitForWindowActive(window));

    TestTouchItem *item = new TestTouchItem(window->contentItem());
    item->setPosition(QPointF(50, 50));
    item->setSize(QSizeF(150, 150));

    QPointF pos(50, 50);
    QTest::touchEvent(window, touchDevice).press(0, item->mapToScene(pos).toPoint(), window);
    QCoreApplication::processEvents();

    QTRY_COMPARE(item->lastEvent.touchPoints.count(), 1);
    TouchEventData d = makeTouchData(QEvent::TouchBegin, window, Qt::TouchPointPressed, makeTouchPoint(item, pos));
    COMPARE_TOUCH_DATA(item->lastEvent, d);
    item->reset();

    QWindowSystemInterface::handleTouchCancelEvent(0, touchDevice);
    QCoreApplication::processEvents();
    d = makeTouchData(QEvent::TouchCancel, window);
    COMPARE_TOUCH_DATA(item->lastEvent, d);

    delete item;
}

void tst_qquickwindow::touchEvent_reentrant()
{
    TestTouchItem::clearMousePressCounter();

    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);

    window->resize(250, 250);
    window->setPosition(100, 100);
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QVERIFY(QTest::qWaitForWindowActive(window));

    TestTouchItem *item = new TestTouchItem(window->contentItem());

    item->spinLoopWhenPressed = true; // will call processEvents() from the touch handler

    item->setPosition(QPointF(50, 50));
    item->setSize(QSizeF(150, 150));
    QPointF pos(60, 60);

    // None of these should commit from the dtor.
    QTest::QTouchEventSequence press = QTest::touchEvent(window, touchDevice, false).press(0, pos.toPoint(), window);
    pos += QPointF(2, 2);
    QTest::QTouchEventSequence move = QTest::touchEvent(window, touchDevice, false).move(0, pos.toPoint(), window);
    QTest::QTouchEventSequence release = QTest::touchEvent(window, touchDevice, false).release(0, pos.toPoint(), window);

    // Now commit (i.e. call QWindowSystemInterface::handleTouchEvent), but do not process the events yet.
    press.commit(false);
    move.commit(false);
    release.commit(false);

    QCoreApplication::processEvents();

    QTRY_COMPARE(item->touchEventCount, 3);

    delete item;
}

void tst_qquickwindow::touchEvent_velocity()
{
    TestTouchItem::clearMousePressCounter();

    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);
    window->resize(250, 250);
    window->setPosition(100, 100);
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QVERIFY(QTest::qWaitForWindowExposed(window));
    QTest::qWait(10);

    TestTouchItem *item = new TestTouchItem(window->contentItem());
    item->setPosition(QPointF(50, 50));
    item->setSize(QSizeF(150, 150));

    QList<QWindowSystemInterface::TouchPoint> points;
    QWindowSystemInterface::TouchPoint tp;
    tp.id = 1;
    tp.state = Qt::TouchPointPressed;
    QPoint pos = window->mapToGlobal(item->mapToScene(QPointF(10, 10)).toPoint());
    tp.area = QRectF(pos, QSizeF(4, 4));
    points << tp;
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QGuiApplication::processEvents();
    QQuickTouchUtils::flush(window);
    QCOMPARE(item->touchEventCount, 1);

    points[0].state = Qt::TouchPointMoved;
    points[0].area.adjust(5, 5, 5, 5);
    QVector2D velocity(1.5, 2.5);
    points[0].velocity = velocity;
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QGuiApplication::processEvents();
    QQuickTouchUtils::flush(window);
    QCOMPARE(item->touchEventCount, 2);
    QCOMPARE(item->lastEvent.touchPoints.count(), 1);
    QCOMPARE(item->lastVelocity, velocity);

    // Now have a transformation on the item and check if velocity and position are transformed accordingly.
    item->setRotation(90); // clockwise
    QMatrix4x4 transformMatrix;
    transformMatrix.rotate(-90, 0, 0, 1); // counterclockwise
    QVector2D transformedVelocity = transformMatrix.mapVector(velocity).toVector2D();
    points[0].area.adjust(5, 5, 5, 5);
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QGuiApplication::processEvents();
    QQuickTouchUtils::flush(window);
    QCOMPARE(item->lastVelocity, transformedVelocity);
    QPoint itemLocalPos = item->mapFromScene(window->mapFromGlobal(points[0].area.center().toPoint())).toPoint();
    QPoint itemLocalPosFromEvent = item->lastEvent.touchPoints[0].pos().toPoint();
    QCOMPARE(itemLocalPos, itemLocalPosFromEvent);

    points[0].state = Qt::TouchPointReleased;
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QGuiApplication::processEvents();
    QQuickTouchUtils::flush(window);
    delete item;
}

void tst_qquickwindow::mergeTouchPointLists_data()
{
    QTest::addColumn<QVector<QQuickItem*>>("list1");
    QTest::addColumn<QVector<QQuickItem*>>("list2");
    QTest::addColumn<QVector<QQuickItem*>>("expected");
    QTest::addColumn<bool>("showItem");

    // FIXME: do not leak all these items
    auto item1 = new QQuickItem();
    auto item2 = new QQuickItem();
    auto item3 = new QQuickItem();
    auto item4 = new QQuickItem();
    auto item5 = new QQuickItem();

    QTest::newRow("empty") << QVector<QQuickItem*>() << QVector<QQuickItem*>() << QVector<QQuickItem*>();
    QTest::newRow("single list left")
            << (QVector<QQuickItem*>() << item1 << item2 << item3)
            << QVector<QQuickItem*>()
            << (QVector<QQuickItem*>() << item1 << item2 << item3);
    QTest::newRow("single list right")
            << QVector<QQuickItem*>()
            << (QVector<QQuickItem*>() << item1 << item2 << item3)
            << (QVector<QQuickItem*>() << item1 << item2 << item3);
    QTest::newRow("two lists identical")
            << (QVector<QQuickItem*>() << item1 << item2 << item3)
            << (QVector<QQuickItem*>() << item1 << item2 << item3)
            << (QVector<QQuickItem*>() << item1 << item2 << item3);
    QTest::newRow("two lists 1")
            << (QVector<QQuickItem*>() << item1 << item2 << item5)
            << (QVector<QQuickItem*>() << item3 << item4 << item5)
            << (QVector<QQuickItem*>() << item1 << item2 << item3 << item4 << item5);
    QTest::newRow("two lists 2")
            << (QVector<QQuickItem*>() << item1 << item2 << item5)
            << (QVector<QQuickItem*>() << item3 << item4 << item5)
            << (QVector<QQuickItem*>() << item1 << item2 << item3 << item4 << item5);
    QTest::newRow("two lists 3")
            << (QVector<QQuickItem*>() << item1 << item2 << item3)
            << (QVector<QQuickItem*>() << item1 << item4 << item5)
            << (QVector<QQuickItem*>() << item1 << item2 << item3 << item4 << item5);
    QTest::newRow("two lists 4")
            << (QVector<QQuickItem*>() << item1 << item3 << item4)
            << (QVector<QQuickItem*>() << item2 << item3 << item5)
            << (QVector<QQuickItem*>() << item1 << item2 << item3 << item4 << item5);
    QTest::newRow("two lists 5")
            << (QVector<QQuickItem*>() << item1 << item2 << item4)
            << (QVector<QQuickItem*>() << item1 << item3 << item4)
            << (QVector<QQuickItem*>() << item1 << item2 << item3 << item4);
}

void tst_qquickwindow::mergeTouchPointLists()
{
    QFETCH(QVector<QQuickItem*>, list1);
    QFETCH(QVector<QQuickItem*>, list2);
    QFETCH(QVector<QQuickItem*>, expected);

    QQuickWindow win;
    auto windowPrivate = QQuickWindowPrivate::get(&win);
    auto targetList = windowPrivate->mergePointerTargets(list1, list2);
    QCOMPARE(targetList, expected);
}

void tst_qquickwindow::mouseFromTouch_basic()
{
    // Turn off accepting touch events with acceptTouchEvents. This
    // should result in sending mouse events generated from the touch
    // with the new event propagation system.

    TestTouchItem::clearMousePressCounter();
    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);
    window->resize(250, 250);
    window->setPosition(100, 100);
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QVERIFY(QTest::qWaitForWindowExposed(window));
    QTest::qWait(10);

    TestTouchItem *item = new TestTouchItem(window->contentItem());
    item->setPosition(QPointF(50, 50));
    item->setSize(QSizeF(150, 150));
    item->acceptTouchEvents = false;

    QList<QWindowSystemInterface::TouchPoint> points;
    QWindowSystemInterface::TouchPoint tp;
    tp.id = 1;
    tp.state = Qt::TouchPointPressed;
    QPoint pos = window->mapToGlobal(item->mapToScene(QPointF(10, 10)).toPoint());
    tp.area = QRectF(pos, QSizeF(4, 4));
    points << tp;
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QGuiApplication::processEvents();
    QQuickTouchUtils::flush(window);
    points[0].state = Qt::TouchPointMoved;
    points[0].area.adjust(5, 5, 5, 5);
    QVector2D velocity(1.5, 2.5);
    points[0].velocity = velocity;
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QGuiApplication::processEvents();
    QQuickTouchUtils::flush(window);
    points[0].state = Qt::TouchPointReleased;
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QGuiApplication::processEvents();
    QQuickTouchUtils::flush(window);

    // The item should have received a mouse press, move, and release.
    QCOMPARE(item->mousePressNum, 1);
    QCOMPARE(item->mouseMoveNum, 1);
    QCOMPARE(item->mouseReleaseNum, 1);
    QCOMPARE(item->lastMousePos.toPoint(), item->mapFromScene(window->mapFromGlobal(points[0].area.center().toPoint())).toPoint());
    QCOMPARE(item->lastVelocityFromMouseMove, velocity);
    QVERIFY((item->lastMouseCapabilityFlags & QTouchDevice::Velocity) != 0);

    // Now the same with a transformation.
    item->setRotation(90); // clockwise
    QMatrix4x4 transformMatrix;
    transformMatrix.rotate(-90, 0, 0, 1); // counterclockwise
    QVector2D transformedVelocity = transformMatrix.mapVector(velocity).toVector2D();
    points[0].state = Qt::TouchPointPressed;
    points[0].velocity = velocity;
    points[0].area = QRectF(pos, QSizeF(4, 4));
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QGuiApplication::processEvents();
    QQuickTouchUtils::flush(window);
    points[0].state = Qt::TouchPointMoved;
    points[0].area.adjust(5, 5, 5, 5);
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QGuiApplication::processEvents();
    QQuickTouchUtils::flush(window);
    QCOMPARE(item->lastMousePos.toPoint(), item->mapFromScene(window->mapFromGlobal(points[0].area.center().toPoint())).toPoint());
    QCOMPARE(item->lastVelocityFromMouseMove, transformedVelocity);

    points[0].state = Qt::TouchPointReleased;
    QWindowSystemInterface::handleTouchEvent(window, touchDeviceWithVelocity, points);
    QCoreApplication::processEvents();
    QQuickTouchUtils::flush(window);
    delete item;
}

void tst_qquickwindow::clearWindow()
{
    QQuickWindow *window = new QQuickWindow;
    window->setTitle(QTest::currentTestFunction());
    QQuickItem *item = new QQuickItem;
    item->setParentItem(window->contentItem());

    QCOMPARE(item->window(), window);

    delete window;

    QVERIFY(!item->window());

    delete item;
}

void tst_qquickwindow::mouseFiltering()
{
    TestTouchItem::clearMousePressCounter();

    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);
    window->resize(250, 250);
    window->setPosition(100, 100);
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QVERIFY(QTest::qWaitForWindowActive(window));

    TestTouchItem *bottomItem = new TestTouchItem(window->contentItem());
    bottomItem->setObjectName("Bottom Item");
    bottomItem->setSize(QSizeF(150, 150));

    TestTouchItem *middleItem = new TestTouchItem(bottomItem);
    middleItem->setObjectName("Middle Item");
    middleItem->setPosition(QPointF(50, 50));
    middleItem->setSize(QSizeF(150, 150));

    TestTouchItem *topItem = new TestTouchItem(middleItem);
    topItem->setObjectName("Top Item");
    topItem->setPosition(QPointF(50, 50));
    topItem->setSize(QSizeF(150, 150));

    QPoint pos(100, 100);

    QTest::mousePress(window, Qt::LeftButton, 0, pos);

    // Mouse filtering propagates down the stack, so the
    // correct order is
    // 1. middleItem filters event
    // 2. bottomItem filters event
    // 3. topItem receives event
    QTRY_COMPARE(middleItem->mousePressId, 1);
    QTRY_COMPARE(bottomItem->mousePressId, 2);
    QTRY_COMPARE(topItem->mousePressId, 3);

    // clean up mouse press state for the next tests
    QTest::mouseRelease(window, Qt::LeftButton, 0, pos);
}

void tst_qquickwindow::qmlCreation()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("window.qml"));
    QObject *created = component.create();
    QScopedPointer<QObject> cleanup(created);
    QVERIFY(created);

    QQuickWindow *window = qobject_cast<QQuickWindow*>(created);
    QVERIFY(window);
    QCOMPARE(window->color(), QColor(Qt::green));

    QQuickItem *item = window->findChild<QQuickItem*>("item");
    QVERIFY(item);
    QCOMPARE(item->window(), window);
}

void tst_qquickwindow::clearColor()
{
    //::grab examines rendering to make sure it works visually
    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);
    window->resize(250, 250);
    window->setPosition(100, 100);
    window->setColor(Qt::blue);
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QVERIFY(QTest::qWaitForWindowExposed(window));
    QCOMPARE(window->color(), QColor(Qt::blue));
}

void tst_qquickwindow::defaultState()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.setData("import QtQuick 2.0; import QtQuick.Window 2.1; Window { }", QUrl());
    QObject *created = component.create();
    QScopedPointer<QObject> cleanup(created);
    QVERIFY(created);

    QQuickWindow *qmlWindow = qobject_cast<QQuickWindow*>(created);
    QVERIFY(qmlWindow);
    qmlWindow->setTitle(QTest::currentTestFunction());

    QQuickWindow cppWindow;
    cppWindow.show();
    QTest::qWaitForWindowExposed(&cppWindow);

    QCOMPARE(qmlWindow->windowState(), cppWindow.windowState());
}

void tst_qquickwindow::grab_data()
{
    QTest::addColumn<bool>("visible");
    QTest::addColumn<bool>("alpha");
    QTest::newRow("visible,opaque") << true << false;
    QTest::newRow("invisible,opaque") << false << false;
    QTest::newRow("visible,transparent") << true << true;
    QTest::newRow("invisible,transparent") << false << true;
}

void tst_qquickwindow::grab()
{
    QFETCH(bool, visible);
    QFETCH(bool, alpha);

    QQuickWindow window;
    window.setTitle(QLatin1String(QTest::currentTestFunction()) + QLatin1Char(' ') + QLatin1String(QTest::currentDataTag()));
    if (alpha) {
        window.setColor(QColor(0, 0, 0, 0));
    } else {
        window.setColor(Qt::red);
    }

    window.resize(250, 250);

    if (visible) {
        window.show();
        QVERIFY(QTest::qWaitForWindowExposed(&window));
    } else {
        window.create();
    }

    QImage content = window.grabWindow();
    QCOMPARE(content.width(), int(window.width() * window.devicePixelRatio()));
    QCOMPARE(content.height(), int(window.height() * window.devicePixelRatio()));

    if (alpha) {
        QCOMPARE((uint) content.convertToFormat(QImage::Format_ARGB32_Premultiplied).pixel(0, 0), (uint) 0x00000000);
    } else {
        QCOMPARE((uint) content.convertToFormat(QImage::Format_RGB32).pixel(0, 0), (uint) 0xffff0000);
    }
}

void tst_qquickwindow::multipleWindows()
{
    QList<QQuickWindow *> windows;
    QScopedPointer<QQuickWindow> cleanup[6];

    for (int i=0; i<6; ++i) {
        QQuickWindow *c = new QQuickWindow();
        c->setTitle(QLatin1String(QTest::currentTestFunction()) + QString::number(i));
        c->setColor(Qt::GlobalColor(Qt::red + i));
        c->resize(300, 200);
        c->setPosition(100 + i * 30, 100 + i * 20);
        c->show();
        windows << c;
        cleanup[i].reset(c);
        QVERIFY(QTest::qWaitForWindowExposed(c));
    }

    // move them
    for (int i=0; i<windows.size(); ++i) {
        QQuickWindow *c = windows.at(i);
        c->setPosition(100 + i * 30, 100 + i * 20 + 100);
    }

    // resize them
    for (int i=0; i<windows.size(); ++i) {
        QQuickWindow *c = windows.at(i);
        c->resize(200, 150);
    }
}

void tst_qquickwindow::animationsWhileHidden()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("AnimationsWhileHidden.qml"));
    QObject *created = component.create();
    QScopedPointer<QObject> cleanup(created);

    QQuickWindow *window = qobject_cast<QQuickWindow*>(created);
    QVERIFY(window);
    window->setTitle(QTest::currentTestFunction());
    QVERIFY(window->isVisible());

    // Now hide the window and verify that it went off screen
    window->hide();
    QTest::qWait(10);
    QVERIFY(!window->isVisible());

    // Running animaiton should cause it to become visible again shortly.
    QTRY_VERIFY(window->isVisible());
}

// When running on native Nvidia graphics cards on linux, the
// distance field glyph pixels have a measurable, but not visible
// pixel error. Use a custom compare function to avoid
//
// This was GT-216 with the ubuntu "nvidia-319" driver package.
// llvmpipe does not show the same issue.
//
bool compareImages(const QImage &ia, const QImage &ib)
{
    if (ia.size() != ib.size())
        qDebug() << "images are of different size" << ia.size() << ib.size();
    Q_ASSERT(ia.size() == ib.size());
    Q_ASSERT(ia.format() == ib.format());

    int w = ia.width();
    int h = ia.height();
    const int tolerance = 5;
    for (int y=0; y<h; ++y) {
        const uint *as= (const uint *) ia.constScanLine(y);
        const uint *bs= (const uint *) ib.constScanLine(y);
        for (int x=0; x<w; ++x) {
            uint a = as[x];
            uint b = bs[x];

            // No tolerance for error in the alpha.
            if ((a & 0xff000000) != (b & 0xff000000))
                return false;
            if (qAbs(qRed(a) - qRed(b)) > tolerance)
                return false;
            if (qAbs(qRed(a) - qRed(b)) > tolerance)
                return false;
            if (qAbs(qRed(a) - qRed(b)) > tolerance)
                return false;
        }
    }
    return true;
}

void tst_qquickwindow::headless()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("Headless.qml"));
    QObject *created = component.create();
    QScopedPointer<QObject> cleanup(created);

    QQuickWindow *window = qobject_cast<QQuickWindow*>(created);
    window->setPersistentOpenGLContext(false);
    window->setPersistentSceneGraph(false);
    QVERIFY(window);
    window->setTitle(QTest::currentTestFunction());
    window->show();

    QVERIFY(QTest::qWaitForWindowExposed(window));
    QVERIFY(window->isVisible());
    const bool threaded = QQuickWindowPrivate::get(window)->context->thread() != QThread::currentThread();
    QSignalSpy initialized(window, SIGNAL(sceneGraphInitialized()));
    QSignalSpy invalidated(window, SIGNAL(sceneGraphInvalidated()));

    // Verify that the window is alive and kicking
    QVERIFY(window->isSceneGraphInitialized());

    const bool isGL = window->rendererInterface()->graphicsApi() == QSGRendererInterface::OpenGL;

    // Store the visual result
    QImage originalContent = window->grabWindow();

    // Hide the window and verify signal emittion and GL context deletion
    window->hide();
    window->releaseResources();

    if (threaded) {
        QTRY_VERIFY(invalidated.size() >= 1);
        if (isGL)
            QVERIFY(!window->isSceneGraphInitialized());
    }
#ifndef QT_NO_OPENGL
    if (QGuiApplication::platformName() == QLatin1String("windows")
        && QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGLES) {
        QSKIP("Crashes on Windows/ANGLE, QTBUG-42967");
    }
#endif
    // Destroy the native windowing system buffers
    window->destroy();
    QVERIFY(!window->handle());

    // Show and verify that we are back and running
    window->show();
    QVERIFY(QTest::qWaitForWindowExposed(window));

    if (threaded)
        QTRY_COMPARE(initialized.size(), 1);

    QVERIFY(window->isSceneGraphInitialized());

    // Verify that the visual output is the same
    QImage newContent = window->grabWindow();
    QVERIFY(compareImages(newContent, originalContent));
}

void tst_qquickwindow::noUpdateWhenNothingChanges()
{
    QQuickWindow window;
    window.setTitle(QTest::currentTestFunction());
    window.setGeometry(100, 100, 300, 200);

    QQuickRectangle rect(window.contentItem());

    window.showNormal();
    QTest::qWaitForWindowExposed(&window);
    // Many platforms are broken in the sense that that they follow up
    // the initial expose with a second expose or more. Let these go
    // through before we let the test continue.
    QTest::qWait(100);
    if (QQuickWindowPrivate::get(&window)->context->thread() == QGuiApplication::instance()->thread()) {
        QSKIP("Only threaded renderloop implements this feature");
        return;
    }

    QSignalSpy spy(&window, SIGNAL(frameSwapped()));
    rect.update();
    // Wait a while and verify that no more frameSwapped come our way.
    QTest::qWait(100);

    QCOMPARE(spy.size(), 0);
}

void tst_qquickwindow::focusObject()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("focus.qml"));
    QObject *created = component.create();
    QScopedPointer<QObject> cleanup(created);

    QVERIFY(created);

    QQuickWindow *window = qobject_cast<QQuickWindow*>(created);
    QVERIFY(window);
    window->setTitle(QTest::currentTestFunction());

    QSignalSpy focusObjectSpy(window, SIGNAL(focusObjectChanged(QObject*)));

    window->show();
    QVERIFY(QTest::qWaitForWindowExposed(window));
    window->requestActivate();
    QVERIFY(QTest::qWaitForWindowActive(window));

    QCOMPARE(window->contentItem(), window->focusObject());
    QCOMPARE(focusObjectSpy.count(), 1);

    QQuickItem *item1 = window->findChild<QQuickItem*>("item1");
    QVERIFY(item1);
    item1->setFocus(true);
    QCOMPARE(item1, window->focusObject());
    QCOMPARE(focusObjectSpy.count(), 2);

    QQuickItem *item2 = window->findChild<QQuickItem*>("item2");
    QVERIFY(item2);
    item2->setFocus(true);
    QCOMPARE(item2, window->focusObject());
    QCOMPARE(focusObjectSpy.count(), 3);

    // set focus for item in non-focused focus scope and
    // ensure focusObject does not change and signal is not emitted
    QQuickItem *item3 = window->findChild<QQuickItem*>("item3");
    QVERIFY(item3);
    item3->setFocus(true);
    QCOMPARE(item2, window->focusObject());
    QCOMPARE(focusObjectSpy.count(), 3);
}

void tst_qquickwindow::focusReason()
{
    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);
    window->resize(200, 200);
    window->show();
    window->setTitle(QTest::currentTestFunction());
    QVERIFY(QTest::qWaitForWindowExposed(window));

    QQuickItem *firstItem = new QQuickItem;
    firstItem->setSize(QSizeF(100, 100));
    firstItem->setParentItem(window->contentItem());

    QQuickItem *secondItem = new QQuickItem;
    secondItem->setSize(QSizeF(100, 100));
    secondItem->setParentItem(window->contentItem());

    firstItem->forceActiveFocus(Qt::OtherFocusReason);
    QCOMPARE(QQuickWindowPrivate::get(window)->lastFocusReason, Qt::OtherFocusReason);

    secondItem->forceActiveFocus(Qt::TabFocusReason);
    QCOMPARE(QQuickWindowPrivate::get(window)->lastFocusReason, Qt::TabFocusReason);

    firstItem->forceActiveFocus(Qt::BacktabFocusReason);
    QCOMPARE(QQuickWindowPrivate::get(window)->lastFocusReason, Qt::BacktabFocusReason);

}

void tst_qquickwindow::ignoreUnhandledMouseEvents()
{
    QQuickWindow *window = new QQuickWindow;
    QScopedPointer<QQuickWindow> cleanup(window);
    window->setTitle(QTest::currentTestFunction());
    window->resize(100, 100);
    window->show();
    QVERIFY(QTest::qWaitForWindowExposed(window));

    QQuickItem *item = new QQuickItem;
    item->setSize(QSizeF(100, 100));
    item->setParentItem(window->contentItem());

    {
        QMouseEvent me(QEvent::MouseButtonPress, QPointF(50, 50), Qt::LeftButton, Qt::LeftButton,
                       Qt::NoModifier);
        me.setAccepted(true);
        QVERIFY(QCoreApplication::sendEvent(window, &me));
        QVERIFY(!me.isAccepted());
    }

    {
        QMouseEvent me(QEvent::MouseMove, QPointF(51, 51), Qt::LeftButton, Qt::LeftButton,
                       Qt::NoModifier);
        me.setAccepted(true);
        QVERIFY(QCoreApplication::sendEvent(window, &me));
        QVERIFY(!me.isAccepted());
    }

    {
        QMouseEvent me(QEvent::MouseButtonRelease, QPointF(51, 51), Qt::LeftButton, Qt::LeftButton,
                       Qt::NoModifier);
        me.setAccepted(true);
        QVERIFY(QCoreApplication::sendEvent(window, &me));
        QVERIFY(!me.isAccepted());
    }
}


void tst_qquickwindow::ownershipRootItem()
{
    qmlRegisterType<RootItemAccessor>("Test", 1, 0, "RootItemAccessor");

    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("ownershipRootItem.qml"));
    QObject *created = component.create();
    QScopedPointer<QObject> cleanup(created);

    QQuickWindow *window = qobject_cast<QQuickWindow*>(created);
    QVERIFY(window);
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QVERIFY(QTest::qWaitForWindowExposed(window));

    RootItemAccessor* accessor = window->findChild<RootItemAccessor*>("accessor");
    QVERIFY(accessor);
    engine.collectGarbage();

    QCoreApplication::sendPostedEvents(0, QEvent::DeferredDelete);
    QCoreApplication::processEvents();
    QVERIFY(!accessor->isRootItemDestroyed());
}

#ifndef QT_NO_CURSOR
void tst_qquickwindow::cursor()
{
    QQuickWindow window;
    window.setTitle(QTest::currentTestFunction());
    window.setFramePosition(QGuiApplication::primaryScreen()->availableGeometry().topLeft() + QPoint(50, 50));
    window.resize(320, 290);

    QQuickItem parentItem;
    parentItem.setPosition(QPointF(0, 0));
    parentItem.setSize(QSizeF(180, 180));
    parentItem.setParentItem(window.contentItem());

    QQuickItem childItem;
    childItem.setPosition(QPointF(60, 90));
    childItem.setSize(QSizeF(120, 120));
    childItem.setParentItem(&parentItem);

    QQuickItem clippingItem;
    clippingItem.setPosition(QPointF(120, 120));
    clippingItem.setSize(QSizeF(180, 180));
    clippingItem.setClip(true);
    clippingItem.setParentItem(window.contentItem());

    QQuickItem clippedItem;
    clippedItem.setPosition(QPointF(-30, -30));
    clippedItem.setSize(QSizeF(120, 120));
    clippedItem.setParentItem(&clippingItem);

    window.show();
    QVERIFY(QTest::qWaitForWindowActive(&window));

    // Position the cursor over the parent and child item and the clipped section of clippedItem.
    QTest::mouseMove(&window, QPoint(100, 100));

    // No items cursors, window cursor is the default arrow.
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);

    // The section of clippedItem under the cursor is clipped, and so doesn't affect the window cursor.
    clippedItem.setCursor(Qt::ForbiddenCursor);
    QCOMPARE(clippedItem.cursor().shape(), Qt::ForbiddenCursor);
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);

    // parentItem is under the cursor, so the window cursor is changed.
    parentItem.setCursor(Qt::IBeamCursor);
    QCOMPARE(parentItem.cursor().shape(), Qt::IBeamCursor);
    QCOMPARE(window.cursor().shape(), Qt::IBeamCursor);

    // childItem is under the cursor and is in front of its parent, so the window cursor is changed.
    childItem.setCursor(Qt::WaitCursor);
    QCOMPARE(childItem.cursor().shape(), Qt::WaitCursor);
    QCOMPARE(window.cursor().shape(), Qt::WaitCursor);

    childItem.setCursor(Qt::PointingHandCursor);
    QCOMPARE(childItem.cursor().shape(), Qt::PointingHandCursor);
    QCOMPARE(window.cursor().shape(), Qt::PointingHandCursor);

    // childItem is the current cursor item, so this has no effect on the window cursor.
    parentItem.unsetCursor();
    QCOMPARE(parentItem.cursor().shape(), Qt::ArrowCursor);
    QCOMPARE(window.cursor().shape(), Qt::PointingHandCursor);

    parentItem.setCursor(Qt::IBeamCursor);
    QCOMPARE(parentItem.cursor().shape(), Qt::IBeamCursor);
    QCOMPARE(window.cursor().shape(), Qt::PointingHandCursor);

    // With the childItem cursor cleared, parentItem is now foremost.
    childItem.unsetCursor();
    QCOMPARE(childItem.cursor().shape(), Qt::ArrowCursor);
    QCOMPARE(window.cursor().shape(), Qt::IBeamCursor);

    // Setting the childItem cursor to the default still takes precedence over parentItem.
    childItem.setCursor(Qt::ArrowCursor);
    QCOMPARE(childItem.cursor().shape(), Qt::ArrowCursor);
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);

    childItem.setCursor(Qt::WaitCursor);
    QCOMPARE(childItem.cursor().shape(), Qt::WaitCursor);
    QCOMPARE(window.cursor().shape(), Qt::WaitCursor);

    // Move the cursor so it is over just parentItem.
    QTest::mouseMove(&window, QPoint(20, 20));
    QCOMPARE(window.cursor().shape(), Qt::IBeamCursor);

    // Move the cursor so that is over all items, clippedItem wins because its a child of
    // clippingItem which is in from of parentItem in painting order.
    QTest::mouseMove(&window, QPoint(125, 125));
    QCOMPARE(window.cursor().shape(), Qt::ForbiddenCursor);

    // Over clippingItem only, so no cursor.
    QTest::mouseMove(&window, QPoint(200, 280));
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);

    // Over no item, so no cursor.
    QTest::mouseMove(&window, QPoint(10, 280));
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);

    // back to the start.
    QTest::mouseMove(&window, QPoint(100, 100));
    QCOMPARE(window.cursor().shape(), Qt::WaitCursor);

    // Try with the mouse pressed.
    QTest::mousePress(&window, Qt::LeftButton, 0, QPoint(100, 100));
    QTest::mouseMove(&window, QPoint(20, 20));
    QCOMPARE(window.cursor().shape(), Qt::IBeamCursor);
    QTest::mouseMove(&window, QPoint(125, 125));
    QCOMPARE(window.cursor().shape(), Qt::ForbiddenCursor);
    QTest::mouseMove(&window, QPoint(200, 280));
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);
    QTest::mouseMove(&window, QPoint(10, 280));
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);
    QTest::mouseMove(&window, QPoint(100, 100));
    QCOMPARE(window.cursor().shape(), Qt::WaitCursor);
    QTest::mouseRelease(&window, Qt::LeftButton, 0, QPoint(100, 100));

    // Remove the cursor item from the scene. Theoretically this should make parentItem the
    // cursorItem, but given the situation will correct itself after the next mouse move it
    // simply unsets the window cursor for now.
    childItem.setParentItem(0);
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);

    parentItem.setCursor(Qt::SizeAllCursor);
    QCOMPARE(parentItem.cursor().shape(), Qt::SizeAllCursor);
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);

    // Changing the cursor of an un-parented item doesn't affect the window's cursor.
    childItem.setCursor(Qt::ClosedHandCursor);
    QCOMPARE(childItem.cursor().shape(), Qt::ClosedHandCursor);
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);

    childItem.unsetCursor();
    QCOMPARE(childItem.cursor().shape(), Qt::ArrowCursor);
    QCOMPARE(window.cursor().shape(), Qt::ArrowCursor);

    QTest::mouseRelease(&window, Qt::LeftButton, 0, QPoint(100, 101));
    QCOMPARE(window.cursor().shape(), Qt::SizeAllCursor);
}
#endif

void tst_qquickwindow::hideThenDelete_data()
{
    QTest::addColumn<bool>("persistentSG");
    QTest::addColumn<bool>("persistentGL");

    QTest::newRow("persistent:SG=false,GL=false") << false << false;
    QTest::newRow("persistent:SG=true,GL=false") << true << false;
    QTest::newRow("persistent:SG=false,GL=true") << false << true;
    QTest::newRow("persistent:SG=true,GL=true") << true << true;
}

void tst_qquickwindow::hideThenDelete()
{
    QFETCH(bool, persistentSG);
    QFETCH(bool, persistentGL);

    QSignalSpy *openglDestroyed = 0;
    QSignalSpy *sgInvalidated = 0;

    {
        QQuickWindow window;
        window.setTitle(QLatin1String(QTest::currentTestFunction()) + QLatin1Char(' ')
                        + QLatin1String(QTest::currentDataTag()));
        window.setColor(Qt::red);

        window.setPersistentSceneGraph(persistentSG);
        window.setPersistentOpenGLContext(persistentGL);

        window.resize(400, 300);
        window.show();

        QTest::qWaitForWindowExposed(&window);
        const bool threaded = QQuickWindowPrivate::get(&window)->context->thread() != QGuiApplication::instance()->thread();
        const bool isGL = window.rendererInterface()->graphicsApi() == QSGRendererInterface::OpenGL;
#ifndef QT_NO_OPENGL
        if (isGL)
            openglDestroyed = new QSignalSpy(window.openglContext(), SIGNAL(aboutToBeDestroyed()));
#endif

        sgInvalidated = new QSignalSpy(&window, SIGNAL(sceneGraphInvalidated()));

        window.hide();

        QTRY_VERIFY(!window.isExposed());

        if (threaded) {
            if (!isGL)
                QSKIP("Skipping persistency verification due to not running with OpenGL");

            if (!persistentSG) {
                QVERIFY(sgInvalidated->size() > 0);
                if (!persistentGL)
                    QVERIFY(openglDestroyed->size() > 0);
                else
                    QCOMPARE(openglDestroyed->size(), 0);
            } else {
                QCOMPARE(sgInvalidated->size(), 0);
                QCOMPARE(openglDestroyed->size(), 0);
            }
        }
    }

    QVERIFY(sgInvalidated->size() > 0);
#ifndef QT_NO_OPENGL
    if (openglDestroyed)
        QVERIFY(openglDestroyed->size() > 0);
#endif
}

void tst_qquickwindow::showHideAnimate()
{
    // This test tries to mimick a bug triggered in the qquickanimatedimage test
    // A window is shown, then removed again before it is exposed. This left
    // traces in the render loop which prevent other animations from running
    // later on.
    {
        QQuickWindow window;
        window.resize(400, 300);
        window.show();
    }

    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("showHideAnimate.qml"));
    QQuickItem* created = qobject_cast<QQuickItem *>(component.create());

    QVERIFY(created);

    QTRY_VERIFY(created->opacity() > 0.5);
    QTRY_VERIFY(created->opacity() < 0.5);
}

void tst_qquickwindow::testExpose()
{
    QQuickWindow window;
    window.setTitle(QTest::currentTestFunction());
    window.setGeometry(100, 100, 300, 200);

    window.show();
    QTRY_VERIFY(window.isExposed());

    QSignalSpy swapSpy(&window, SIGNAL(frameSwapped()));

    // exhaust pending exposes, as some platforms send us plenty
    // while showing the first time
    QTest::qWait(1000);
    while (swapSpy.size() != 0) {
        swapSpy.clear();
        QTest::qWait(100);
    }

    QWindowSystemInterface::handleExposeEvent(&window, QRegion(10, 10, 20, 20));
    QTRY_COMPARE(swapSpy.size(), 1);
}

void tst_qquickwindow::requestActivate()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("active.qml"));
    QScopedPointer<QQuickWindow> window1(qobject_cast<QQuickWindow *>(component.create()));
    QVERIFY(!window1.isNull());
    window1->setTitle(QTest::currentTestFunction());

    QWindowList windows = QGuiApplication::topLevelWindows();
    QCOMPARE(windows.size(), 2);

    for (int i = 0; i < windows.size(); ++i) {
        if (windows.at(i)->objectName() == window1->objectName()) {
            windows.removeAt(i);
            break;
        }
    }
    QCOMPARE(windows.size(), 1);
    QCOMPARE(windows.at(0)->objectName(), QLatin1String("window2"));

    window1->show();
    QVERIFY(QTest::qWaitForWindowExposed(windows.at(0))); //We wait till window 2 comes up
    window1->requestActivate();                 // and then transfer the focus to window1

    QTRY_COMPARE(QGuiApplication::focusWindow(), window1.data());
    QVERIFY(window1->isActive());

    QQuickItem *item = QQuickVisualTestUtil::findItem<QQuickItem>(window1->contentItem(), "item1");
    QVERIFY(item);

    //copied from src/qmltest/quicktestevent.cpp
    QPoint pos = item->mapToScene(QPointF(item->width()/2, item->height()/2)).toPoint();

    QMouseEvent me(QEvent::MouseButtonPress, pos, window1->mapToGlobal(pos), Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);
    QSpontaneKeyEvent::setSpontaneous(&me);
    if (!qApp->notify(window1.data(), &me)) {
        QString warning = QString::fromLatin1("Mouse event MousePress not accepted by receiving window");
        QWARN(warning.toLatin1().data());
    }
    me = QMouseEvent(QEvent::MouseButtonPress, pos, window1->mapToGlobal(pos), Qt::LeftButton, 0, Qt::NoModifier);
    QSpontaneKeyEvent::setSpontaneous(&me);
    if (!qApp->notify(window1.data(), &me)) {
        QString warning = QString::fromLatin1("Mouse event MouseRelease not accepted by receiving window");
        QWARN(warning.toLatin1().data());
    }

    QTRY_COMPARE(QGuiApplication::focusWindow(), windows.at(0));
    QVERIFY(windows.at(0)->isActive());
}

void tst_qquickwindow::testWindowVisibilityOrder()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("windoworder.qml"));
    QScopedPointer<QQuickWindow> window1(qobject_cast<QQuickWindow *>(component.create()));
    QVERIFY(!window1.isNull());
    window1->setTitle(QTest::currentTestFunction());
    QQuickWindow *window2 = window1->property("win2").value<QQuickWindow*>();
    QQuickWindow *window3 = window1->property("win3").value<QQuickWindow*>();
    QQuickWindow *window4 = window1->property("win4").value<QQuickWindow*>();
    QQuickWindow *window5 = window1->property("win5").value<QQuickWindow*>();
    QVERIFY(window2);
    QVERIFY(window3);

    QTest::qWaitForWindowExposed(window3);

    QWindowList windows = QGuiApplication::topLevelWindows();
    QTRY_COMPARE(windows.size(), 5);

    QCOMPARE(window3, QGuiApplication::focusWindow());
    QVERIFY(window1->isActive());
    QVERIFY(window2->isActive());
    QVERIFY(window3->isActive());

    //Test if window4 is shown 2 seconds after the application startup
    //with window4 visible window5 (transient child) should also become visible
    QVERIFY(!window4->isVisible());
    QVERIFY(!window5->isVisible());

    window4->setVisible(true);

    QTest::qWaitForWindowExposed(window5);
    QVERIFY(window4->isVisible());
    QVERIFY(window5->isVisible());
}

void tst_qquickwindow::blockClosing()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("ucantclosethis.qml"));
    QScopedPointer<QQuickWindow> window(qobject_cast<QQuickWindow *>(component.create()));
    QVERIFY(!window.isNull());
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QTest::qWaitForWindowExposed(window.data());
    QVERIFY(window->isVisible());
    QWindowSystemInterface::handleCloseEvent(window.data());
    QVERIFY(window->isVisible());
    QWindowSystemInterface::handleCloseEvent(window.data());
    QVERIFY(window->isVisible());
    window->setProperty("canCloseThis", true);
    QWindowSystemInterface::handleCloseEvent(window.data());
    QTRY_VERIFY(!window->isVisible());
}

void tst_qquickwindow::blockCloseMethod()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("ucantclosethis.qml"));
    QScopedPointer<QQuickWindow> window(qobject_cast<QQuickWindow *>(component.create()));
    QVERIFY(!window.isNull());
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QTest::qWaitForWindowExposed(window.data());
    QVERIFY(window->isVisible());
    QVERIFY(QMetaObject::invokeMethod(window.data(), "close", Qt::DirectConnection));
    QVERIFY(window->isVisible());
    QVERIFY(QMetaObject::invokeMethod(window.data(), "close", Qt::DirectConnection));
    QVERIFY(window->isVisible());
    window->setProperty("canCloseThis", true);
    QVERIFY(QMetaObject::invokeMethod(window.data(), "close", Qt::DirectConnection));
    QTRY_VERIFY(!window->isVisible());
}

void tst_qquickwindow::crashWhenHoverItemDeleted()
{
    // QTBUG-32771
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("hoverCrash.qml"));
    QScopedPointer<QQuickWindow> window(qobject_cast<QQuickWindow *>(component.create()));
    QVERIFY(!window.isNull());
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QTest::qWaitForWindowActive(window.data());

    // Simulate a move from the first rectangle to the second. Crash will happen in here
    // Moving instantaneously from (0, 99) to (0, 102) does not cause the crash
    for (int i = 99; i < 102; ++i) {
        QTest::mouseMove(window.data(), QPoint(0, i));
    }
}

// QTBUG-33436
void tst_qquickwindow::unloadSubWindow()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("unloadSubWindow.qml"));
    QScopedPointer<QQuickWindow> window(qobject_cast<QQuickWindow *>(component.create()));
    QVERIFY(!window.isNull());
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QTest::qWaitForWindowExposed(window.data());
    QPointer<QQuickWindow> transient;
    QTRY_VERIFY(transient = window->property("transientWindow").value<QQuickWindow*>());
    QTest::qWaitForWindowExposed(transient);

    // Unload the inner window (in nested Loaders) and make sure it doesn't crash
    QQuickLoader *loader = window->property("loader1").value<QQuickLoader*>();
    loader->setActive(false);
    QTRY_VERIFY(transient.isNull() || !transient->isVisible());
}

// QTBUG-52573
void tst_qquickwindow::changeVisibilityInCompleted()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("changeVisibilityInCompleted.qml"));
    QScopedPointer<QQuickWindow> window(qobject_cast<QQuickWindow *>(component.create()));
    QVERIFY(!window.isNull());
    window->setTitle(QTest::currentTestFunction());
    window->show();
    QTest::qWaitForWindowExposed(window.data());
    QPointer<QQuickWindow> winVisible;
    QTRY_VERIFY(winVisible = window->property("winVisible").value<QQuickWindow*>());
    QPointer<QQuickWindow> winVisibility;
    QTRY_VERIFY(winVisibility = window->property("winVisibility").value<QQuickWindow*>());
    QTest::qWaitForWindowExposed(winVisible);
    QTest::qWaitForWindowExposed(winVisibility);

    QVERIFY(winVisible->isVisible());
    QCOMPARE(winVisibility->visibility(), QWindow::Windowed);
}

// QTBUG-32004
void tst_qquickwindow::qobjectEventFilter_touch()
{
    QQuickWindow window;

    window.resize(250, 250);
    window.setPosition(100, 100);
    window.setTitle(QTest::currentTestFunction());
    window.show();
    QVERIFY(QTest::qWaitForWindowActive(&window));

    TestTouchItem *item = new TestTouchItem(window.contentItem());
    item->setSize(QSizeF(150, 150));

    EventFilter eventFilter;
    item->installEventFilter(&eventFilter);

    QPointF pos(10, 10);

    // press single point
    QTest::touchEvent(&window, touchDevice).press(0, item->mapToScene(pos).toPoint(), &window);

    QCOMPARE(eventFilter.events.count(), 1);
    QCOMPARE(eventFilter.events.first(), (int)QEvent::TouchBegin);
}

// QTBUG-32004
void tst_qquickwindow::qobjectEventFilter_key()
{
    QQuickWindow window;

    window.resize(250, 250);
    window.setPosition(100, 100);
    window.setTitle(QTest::currentTestFunction());
    window.show();
    QVERIFY(QTest::qWaitForWindowActive(&window));

    TestTouchItem *item = new TestTouchItem(window.contentItem());
    item->setSize(QSizeF(150, 150));
    item->setFocus(true);

    EventFilter eventFilter;
    item->installEventFilter(&eventFilter);

    QTest::keyPress(&window, Qt::Key_A);

    // NB: It may also receive some QKeyEvent(ShortcutOverride) which we're not interested in
    QVERIFY(eventFilter.events.contains((int)QEvent::KeyPress));
    eventFilter.events.clear();

    QTest::keyRelease(&window, Qt::Key_A);

    QVERIFY(eventFilter.events.contains((int)QEvent::KeyRelease));
}

// QTBUG-32004
void tst_qquickwindow::qobjectEventFilter_mouse()
{
    QQuickWindow window;

    window.resize(250, 250);
    window.setPosition(100, 100);
    window.setTitle(QTest::currentTestFunction());
    window.show();
    QVERIFY(QTest::qWaitForWindowActive(&window));

    TestTouchItem *item = new TestTouchItem(window.contentItem());
    item->setSize(QSizeF(150, 150));

    EventFilter eventFilter;
    item->installEventFilter(&eventFilter);

    QPoint point = item->mapToScene(QPointF(10, 10)).toPoint();
    QTest::mouseMove(&window, point);
    QTest::mousePress(&window, Qt::LeftButton, Qt::NoModifier, point);

    QVERIFY(eventFilter.events.contains((int)QEvent::MouseButtonPress));

    // clean up mouse press state for the next tests
    QTest::mouseRelease(&window, Qt::LeftButton, Qt::NoModifier, point);
}

void tst_qquickwindow::animatingSignal()
{
    QQuickWindow window;
    window.setTitle(QTest::currentTestFunction());
    window.setGeometry(100, 100, 300, 200);

    QSignalSpy spy(&window, SIGNAL(afterAnimating()));

    window.show();
    QTRY_VERIFY(window.isExposed());

    QTRY_VERIFY(spy.count() > 1);
}

// QTBUG-36938
void tst_qquickwindow::contentItemSize()
{
    QQuickWindow window;
    window.setTitle(QTest::currentTestFunction());
    QQuickItem *contentItem = window.contentItem();
    QVERIFY(contentItem);
    QCOMPARE(QSize(contentItem->width(), contentItem->height()), window.size());

    QSizeF size(300, 200);
    window.resize(size.toSize());
    window.show();
    QVERIFY(QTest::qWaitForWindowExposed(&window));

    QCOMPARE(window.size(), size.toSize());
    QCOMPARE(QSizeF(contentItem->width(), contentItem->height()), size);

    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.setData(QByteArray("import QtQuick 2.1\n Rectangle { anchors.fill: parent }"), QUrl());
    QQuickItem *rect = qobject_cast<QQuickItem *>(component.create());
    QVERIFY(rect);
    rect->setParentItem(window.contentItem());
    QCOMPARE(QSizeF(rect->width(), rect->height()), size);

    size.transpose();
    window.resize(size.toSize());
    QCOMPARE(window.size(), size.toSize());
    // wait for resize event
    QTRY_COMPARE(QSizeF(contentItem->width(), contentItem->height()), size);
    QCOMPARE(QSizeF(rect->width(), rect->height()), size);
}

void tst_qquickwindow::defaultSurfaceFormat()
{
    // It is quite difficult to verify anything for real since the resulting format after
    // surface/context creation can be anything, depending on the platform and drivers,
    // and many options and settings may fail in various configurations, but test at
    // least using some harmless settings to check that the global, static format is
    // taken into account in the requested format.

    QSurfaceFormat savedDefaultFormat = QSurfaceFormat::defaultFormat();

    // Verify that depth and stencil are set, as they should be, unless they are disabled
    // via environment variables.

    QSurfaceFormat format = savedDefaultFormat;
    format.setSwapInterval(0);
    format.setRedBufferSize(8);
    format.setGreenBufferSize(8);
    format.setBlueBufferSize(8);
    format.setProfile(QSurfaceFormat::CompatibilityProfile);
    format.setOption(QSurfaceFormat::DebugContext);
    // Will not set depth and stencil. That should be added automatically,
    // unless the are disabled (but they aren't).
    QSurfaceFormat::setDefaultFormat(format);

    QQuickWindow window;
    window.setTitle(QTest::currentTestFunction());
    window.show();
    QVERIFY(QTest::qWaitForWindowExposed(&window));

    if (window.rendererInterface()->graphicsApi() != QSGRendererInterface::OpenGL)
        QSKIP("Skipping OpenGL context test due to not running with OpenGL");

    const QSurfaceFormat reqFmt = window.requestedFormat();
    QCOMPARE(format.swapInterval(), reqFmt.swapInterval());
    QCOMPARE(format.redBufferSize(), reqFmt.redBufferSize());
    QCOMPARE(format.greenBufferSize(), reqFmt.greenBufferSize());
    QCOMPARE(format.blueBufferSize(), reqFmt.blueBufferSize());
    QCOMPARE(format.profile(), reqFmt.profile());
    QCOMPARE(int(format.options()), int(reqFmt.options()));

#ifndef QT_NO_OPENGL
    // Depth and stencil should be >= what has been requested. For real. But use
    // the context since the window's surface format is only partially updated
    // on most platforms.
    QVERIFY(window.openglContext()->format().depthBufferSize() >= 16);
    QVERIFY(window.openglContext()->format().stencilBufferSize() >= 8);
#endif
    QSurfaceFormat::setDefaultFormat(savedDefaultFormat);
}

void tst_qquickwindow::attachedProperty()
{
    QQuickView view(testFileUrl("windowattached.qml"));
    view.setTitle(QTest::currentTestFunction());
    view.show();
    view.requestActivate();
    QVERIFY(QTest::qWaitForWindowActive(&view));
    QVERIFY(view.rootObject()->property("windowActive").toBool());
    QCOMPARE(view.rootObject()->property("contentItem").value<QQuickItem*>(), view.contentItem());
    QCOMPARE(view.rootObject()->property("windowWidth").toInt(), view.width());
    QCOMPARE(view.rootObject()->property("windowHeight").toInt(), view.height());
    QCOMPARE(view.rootObject()->property("window").value<QQuickView*>(), &view);

    QQuickWindow *innerWindow = view.rootObject()->findChild<QQuickWindow*>("extraWindow");
    QVERIFY(innerWindow);
    innerWindow->requestActivate();
    QVERIFY(QTest::qWaitForWindowActive(innerWindow));

    QQuickText *text = view.rootObject()->findChild<QQuickText*>("extraWindowText");
    QVERIFY(text);
    QCOMPARE(text->text(), QLatin1String("active\nvisibility: 2"));
    QCOMPARE(text->property("contentItem").value<QQuickItem*>(), innerWindow->contentItem());
    QCOMPARE(text->property("windowWidth").toInt(), innerWindow->width());
    QCOMPARE(text->property("windowHeight").toInt(), innerWindow->height());
    QCOMPARE(text->property("window").value<QQuickWindow*>(), innerWindow);

    text->setParentItem(0);
    QVERIFY(!text->property("contentItem").value<QQuickItem*>());
    QCOMPARE(text->property("windowWidth").toInt(), 0);
    QCOMPARE(text->property("windowHeight").toInt(), 0);
    QVERIFY(!text->property("window").value<QQuickWindow*>());
}

class RenderJob : public QRunnable
{
public:
    RenderJob(QQuickWindow::RenderStage s, QList<QQuickWindow::RenderStage> *l) : stage(s), list(l) { }
    ~RenderJob() { ++deleted; }
    QQuickWindow::RenderStage stage;
    QList<QQuickWindow::RenderStage> *list;
    void run() {
        list->append(stage);
    }
    static int deleted;
};
#ifndef QT_NO_OPENGL
class GlRenderJob : public QRunnable
{
public:
    GlRenderJob(GLubyte *buf) : readPixel(buf), mutex(0), condition(0) {}
    ~GlRenderJob() {}
    void run() {
        QOpenGLContext::currentContext()->functions()->glClearColor(1.0f, 0, 0, 1.0f);
        QOpenGLContext::currentContext()->functions()->glClear(GL_COLOR_BUFFER_BIT);
        QOpenGLContext::currentContext()->functions()->glReadPixels(0, 0, 1, 1, GL_RGBA,
                                                                    GL_UNSIGNED_BYTE,
                                                                    (void *)readPixel);
        if (mutex) {
            mutex->lock();
            condition->wakeOne();
            mutex->unlock();
        }
    }
    GLubyte *readPixel;
    QMutex *mutex;
    QWaitCondition *condition;
};
#endif
int RenderJob::deleted = 0;

void tst_qquickwindow::testRenderJob()
{
    QList<QQuickWindow::RenderStage> completedJobs;

    QQuickWindow::RenderStage stages[] = {
        QQuickWindow::BeforeSynchronizingStage,
        QQuickWindow::AfterSynchronizingStage,
        QQuickWindow::BeforeRenderingStage,
        QQuickWindow::AfterRenderingStage,
        QQuickWindow::AfterSwapStage,
        QQuickWindow::NoStage
    };

    const int numJobs = 6;

    {
        QQuickWindow window;
        window.setTitle(QTest::currentTestFunction());
        RenderJob::deleted = 0;

        // Schedule the jobs
        for (int i = 0; i < numJobs; ++i)
            window.scheduleRenderJob(new RenderJob(stages[i], &completedJobs), stages[i]);
        window.show();
        QVERIFY(QTest::qWaitForWindowExposed(&window));

        // All jobs should be deleted
        QTRY_COMPARE(RenderJob::deleted, numJobs);

        // The NoStage job is not completed, if it is issued when there is no context,
        // but the rest will be queued and completed once relevant render stage is hit.
        QCOMPARE(completedJobs.size(), numJobs - 1);

        // Verify jobs were completed in correct order
        for (int i = 0; i < numJobs - 1; ++i)
            QCOMPARE(completedJobs.at(i), stages[i]);


        // Check that NoStage job gets executed if it is scheduled when window is exposed
        completedJobs.clear();
        RenderJob::deleted = 0;
        window.scheduleRenderJob(new RenderJob(QQuickWindow::NoStage, &completedJobs),
                                 QQuickWindow::NoStage);
        QTRY_COMPARE(RenderJob::deleted, 1);
        QCOMPARE(completedJobs.size(), 1);

#ifndef QT_NO_OPENGL
        if (window.rendererInterface()->graphicsApi() == QSGRendererInterface::OpenGL) {
            // Do a synchronized GL job.
            GLubyte readPixel[4] = {0, 0, 0, 0};
            GlRenderJob *glJob = new GlRenderJob(readPixel);
            if (window.openglContext()->thread() != QThread::currentThread()) {
                QMutex mutex;
                QWaitCondition condition;
                glJob->mutex = &mutex;
                glJob->condition = &condition;
                mutex.lock();
                window.scheduleRenderJob(glJob, QQuickWindow::NoStage);
                condition.wait(&mutex);
                mutex.unlock();
            } else {
                window.scheduleRenderJob(glJob, QQuickWindow::NoStage);
            }
            QCOMPARE(int(readPixel[0]), 255);
            QCOMPARE(int(readPixel[1]), 0);
            QCOMPARE(int(readPixel[2]), 0);
            QCOMPARE(int(readPixel[3]), 255);
        }
#endif
    }

    // Verify that jobs are deleted when window is not rendered at all
    completedJobs.clear();
    RenderJob::deleted = 0;
    {
        QQuickWindow window2;
        for (int i = 0; i < numJobs; ++i) {
            window2.scheduleRenderJob(new RenderJob(stages[i], &completedJobs), stages[i]);
        }
    }
    QTRY_COMPARE(RenderJob::deleted, numJobs);
    QCOMPARE(completedJobs.size(), 0);
}

class EventCounter : public QQuickRectangle
{
public:
    EventCounter(QQuickItem *parent = 0)
        : QQuickRectangle(parent)
    { }

    void addFilterEvent(QEvent::Type type)
    {
        m_returnTrueForType.append(type);
    }

    int childMouseEventFilterEventCount(QEvent::Type type)
    {
        return m_childMouseEventFilterEventCount.value(type, 0);
    }

    int eventCount(QEvent::Type type)
    {
        return m_eventCount.value(type, 0);
    }

    void reset()
    {
        m_eventCount.clear();
        m_childMouseEventFilterEventCount.clear();
    }
protected:
    bool childMouseEventFilter(QQuickItem *, QEvent *event) Q_DECL_OVERRIDE
    {
        m_childMouseEventFilterEventCount[event->type()]++;
        return m_returnTrueForType.contains(event->type());
    }

    bool event(QEvent *event) Q_DECL_OVERRIDE
    {
        m_eventCount[event->type()]++;
        return QQuickRectangle::event(event);
    }


private:
    QList<QEvent::Type> m_returnTrueForType;
    QMap<QEvent::Type, int> m_childMouseEventFilterEventCount;
    QMap<QEvent::Type, int> m_eventCount;
};

void tst_qquickwindow::testHoverChildMouseEventFilter()
{
    QQuickWindow window;

    window.resize(250, 250);
    window.setPosition(100, 100);
    window.setTitle(QTest::currentTestFunction());
    window.show();
    QVERIFY(QTest::qWaitForWindowActive(&window));

    EventCounter *bottomItem = new EventCounter(window.contentItem());
    bottomItem->setObjectName("Bottom Item");
    bottomItem->setSize(QSizeF(150, 150));
    bottomItem->setAcceptHoverEvents(true);

    EventCounter *middleItem = new EventCounter(bottomItem);
    middleItem->setObjectName("Middle Item");
    middleItem->setPosition(QPointF(50, 50));
    middleItem->setSize(QSizeF(150, 150));
    middleItem->setAcceptHoverEvents(true);

    EventCounter *topItem = new EventCounter(middleItem);
    topItem->setObjectName("Top Item");
    topItem->setPosition(QPointF(50, 50));
    topItem->setSize(QSizeF(150, 150));
    topItem->setAcceptHoverEvents(true);

    QPoint pos(10, 10);

    QTest::mouseMove(&window, pos);

    QTRY_VERIFY(bottomItem->eventCount(QEvent::HoverEnter) > 0);
    QCOMPARE(bottomItem->childMouseEventFilterEventCount(QEvent::HoverEnter), 0);
    QCOMPARE(middleItem->eventCount(QEvent::HoverEnter), 0);
    QCOMPARE(topItem->eventCount(QEvent::HoverEnter), 0);
    bottomItem->reset();

    pos = QPoint(60, 60);
    QTest::mouseMove(&window, pos);
    QTRY_VERIFY(middleItem->eventCount(QEvent::HoverEnter) > 0);
    QCOMPARE(bottomItem->childMouseEventFilterEventCount(QEvent::HoverEnter), 0);
    middleItem->reset();

    pos = QPoint(70,70);
    bottomItem->setFiltersChildMouseEvents(true);
    QTest::mouseMove(&window, pos);
    QTRY_VERIFY(middleItem->eventCount(QEvent::HoverMove) > 0);
    QVERIFY(bottomItem->childMouseEventFilterEventCount(QEvent::HoverMove) > 0);
    QCOMPARE(topItem->eventCount(QEvent::HoverEnter), 0);
    bottomItem->reset();
    middleItem->reset();

    pos = QPoint(110,110);
    bottomItem->addFilterEvent(QEvent::HoverEnter);
    QTest::mouseMove(&window, pos);
    QTRY_VERIFY(bottomItem->childMouseEventFilterEventCount(QEvent::HoverEnter) > 0);
    QCOMPARE(topItem->eventCount(QEvent::HoverEnter), 0);
    QCOMPARE(middleItem->eventCount(QEvent::HoverEnter), 0);
}

void tst_qquickwindow::pointerEventTypeAndPointCount()
{
    QMouseEvent me(QEvent::MouseButtonPress, QPointF(), Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);
    QTouchEvent te(QEvent::TouchBegin, touchDevice, Qt::NoModifier, Qt::TouchPointPressed,
        QList<QTouchEvent::TouchPoint>() << QTouchEvent::TouchPoint(1));

    QQuickPointerMouseEvent pme;
    pme.reset(&me);
    QVERIFY(pme.isValid());
    QCOMPARE(pme.asMouseEvent(), &me);
    QVERIFY(pme.asPointerMouseEvent());
    QVERIFY(!pme.asPointerTouchEvent());
    QVERIFY(!pme.asPointerTabletEvent());
//    QVERIFY(!pe->asTabletEvent()); // TODO
    QCOMPARE(pme.pointCount(), 1);

    QQuickPointerTouchEvent pte;
    pte.reset(&te);
    QVERIFY(pte.isValid());
    QCOMPARE(pte.asTouchEvent(), &te);
    QVERIFY(!pte.asPointerMouseEvent());
    QVERIFY(pte.asPointerTouchEvent());
    QVERIFY(!pte.asPointerTabletEvent());
    QVERIFY(pte.asTouchEvent());
//    QVERIFY(!pte.asTabletEvent()); // TODO
    QCOMPARE(pte.pointCount(), 1);
    QCOMPARE(pte.touchPointById(1)->id(), 1);
    QVERIFY(!pte.touchPointById(0));

    te.setTouchPoints(QList<QTouchEvent::TouchPoint>() << QTouchEvent::TouchPoint(1) << QTouchEvent::TouchPoint(2));
    pte.reset(&te);
    QCOMPARE(pte.pointCount(), 2);
    QCOMPARE(pte.touchPointById(1)->id(), 1);
    QCOMPARE(pte.touchPointById(2)->id(), 2);
    QVERIFY(!pte.touchPointById(0));

    te.setTouchPoints(QList<QTouchEvent::TouchPoint>() << QTouchEvent::TouchPoint(2));
    pte.reset(&te);
    QCOMPARE(pte.pointCount(), 1);
    QCOMPARE(pte.touchPointById(2)->id(), 2);
    QVERIFY(!pte.touchPointById(1));
    QVERIFY(!pte.touchPointById(0));
}

QTEST_MAIN(tst_qquickwindow)

#include "tst_qquickwindow.moc"