v5.15.4-lts-lgpl

54 files changed, 865 insertions, 87 deletions

diff --git a/.qmake.conf b/.qmake.conf
index 4e82106546..b09daef9c6 100644
--- a/.qmake.conf
+++ b/.qmake.conf
@@ -4,4 +4,4 @@ CONFIG += warning_clean
 DEFINES += QT_NO_LINKED_LIST
 DEFINES += QT_NO_JAVA_STYLE_ITERATORS
 
-MODULE_VERSION = 5.15.3
+MODULE_VERSION = 5.15.4
diff --git a/src/particles/qquickimageparticle.cpp b/src/particles/qquickimageparticle.cpp
index 4d67691771..d2a0e5545b 100644
--- a/src/particles/qquickimageparticle.cpp
+++ b/src/particles/qquickimageparticle.cpp
@@ -1132,6 +1132,7 @@ QQuickImageParticle::QQuickImageParticle(QQuickItem* parent)
     , m_startedImageLoading(0)
     , m_rhi(nullptr)
     , m_apiChecked(false)
+    , m_previousActive(false)
 {
     setFlag(ItemHasContents);
 }
@@ -1960,11 +1961,13 @@ QSGNode *QQuickImageParticle::updatePaintNode(QSGNode *node, UpdatePaintNodeData
     }
 
     if (m_system && m_system->isRunning() && !m_system->isPaused()){
-        prepareNextFrame(&node);
+        bool dirty = prepareNextFrame(&node);
         if (node) {
             update();
-            foreach (QSGGeometryNode* n, m_nodes)
-                n->markDirty(QSGNode::DirtyGeometry);
+            if (dirty) {
+                foreach (QSGGeometryNode* n, m_nodes)
+                    n->markDirty(QSGNode::DirtyGeometry);
+            }
         } else if (m_startedImageLoading < 2) {
             update();//To call prepareNextFrame() again from the renderThread
         }
@@ -1978,7 +1981,7 @@ QSGNode *QQuickImageParticle::updatePaintNode(QSGNode *node, UpdatePaintNodeData
     return node;
 }
 
-void QQuickImageParticle::prepareNextFrame(QSGNode **node)
+bool QQuickImageParticle::prepareNextFrame(QSGNode **node)
 {
     if (*node == nullptr){//TODO: Staggered loading (as emitted)
         buildParticleNodes(node);
@@ -1994,7 +1997,7 @@ void QQuickImageParticle::prepareNextFrame(QSGNode **node)
             qDebug() << "Total count: " << count;
         }
         if (*node == nullptr)
-            return;
+            return false;
     }
     qint64 timeStamp = m_system->systemSync(this);
 
@@ -2015,8 +2018,23 @@ void QQuickImageParticle::prepareNextFrame(QSGNode **node)
         getState(m_material)->timestamp = time;
         break;
     }
-    foreach (QSGGeometryNode* node, m_nodes)
-        node->markDirty(QSGNode::DirtyMaterial);
+
+    bool active = false;
+    for (auto groupId : groupIds()) {
+        if (m_system->groupData[groupId]->isActive()) {
+            active = true;
+            break;
+        }
+    }
+
+    const bool dirty = active || m_previousActive;
+    if (dirty) {
+        foreach (QSGGeometryNode* node, m_nodes)
+            node->markDirty(QSGNode::DirtyMaterial);
+    }
+
+    m_previousActive = active;
+    return dirty;
 }
 
 void QQuickImageParticle::spritesUpdate(qreal time)
diff --git a/src/particles/qquickimageparticle_p.h b/src/particles/qquickimageparticle_p.h
index fdb404861c..b5fdfdadc9 100644
--- a/src/particles/qquickimageparticle_p.h
+++ b/src/particles/qquickimageparticle_p.h
@@ -363,7 +363,7 @@ protected:
     void commit(int gIdx, int pIdx) override;
 
     QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override;
-    void prepareNextFrame(QSGNode**);
+    bool prepareNextFrame(QSGNode**);
     void buildParticleNodes(QSGNode**);
 
     void sceneGraphInvalidated() override;
@@ -460,6 +460,7 @@ private:
     int m_startedImageLoading;
     QRhi *m_rhi;
     bool m_apiChecked;
+    bool m_previousActive;
 };
 
 QT_END_NAMESPACE
diff --git a/src/particles/qquickparticlesystem_p.h b/src/particles/qquickparticlesystem_p.h
index ea890d20f4..c74be45c7a 100644
--- a/src/particles/qquickparticlesystem_p.h
+++ b/src/particles/qquickparticlesystem_p.h
@@ -205,6 +205,8 @@ public:
 
     QString name();
 
+    bool isActive() { return freeList.count() > 0; }
+
     void setSize(int newSize);
 
     const ID index;
diff --git a/src/qml/jsapi/qjsvalue.h b/src/qml/jsapi/qjsvalue.h
index 2f95e0ff31..80641ff235 100644
--- a/src/qml/jsapi/qjsvalue.h
+++ b/src/qml/jsapi/qjsvalue.h
@@ -57,7 +57,6 @@ class QDateTime;
 typedef QList<QJSValue> QJSValueList;
 namespace QV4 {
     struct ExecutionEngine;
-    struct Value;
 }
 
 class Q_QML_EXPORT QJSValue
diff --git a/src/qml/jsruntime/qv4arrayobject.cpp b/src/qml/jsruntime/qv4arrayobject.cpp
index df9f117d04..03e5c29973 100644
--- a/src/qml/jsruntime/qv4arrayobject.cpp
+++ b/src/qml/jsruntime/qv4arrayobject.cpp
@@ -254,6 +254,7 @@ ReturnedValue ArrayPrototype::method_from(const FunctionObject *builtin, const V
             }
 
             if (mapfn) {
+                Q_ASSERT(mapArguments); // if mapfn is set, we always setup mapArguments with scope.alloc
                 mapArguments[0] = *nextValue;
                 mapArguments[1] = Value::fromDouble(k);
                 mappedValue = mapfn->call(thisArg, mapArguments, 2);
@@ -297,6 +298,7 @@ ReturnedValue ArrayPrototype::method_from(const FunctionObject *builtin, const V
             CHECK_EXCEPTION();
 
             if (mapfn) {
+                Q_ASSERT(mapArguments); // if mapfn is set, we always setup mapArguments with scope.alloc
                 mapArguments[0] = kValue;
                 mapArguments[1] = Value::fromDouble(k);
                 mappedValue = mapfn->call(thisArg, mapArguments, 2);
diff --git a/src/qml/jsruntime/qv4generatorobject.cpp b/src/qml/jsruntime/qv4generatorobject.cpp
index 4eee6f4338..5077bf1d2b 100644
--- a/src/qml/jsruntime/qv4generatorobject.cpp
+++ b/src/qml/jsruntime/qv4generatorobject.cpp
@@ -97,24 +97,21 @@ ReturnedValue GeneratorFunction::virtualCall(const FunctionObject *f, const Valu
     Function *function = gf->function();
     ExecutionEngine *engine = gf->engine();
 
-    // We need to set up a separate stack for the generator, as it's being re-entered
-    uint stackSize = argc // space for the original arguments
-                   + CppStackFrame::requiredJSStackFrameSize(function); // space for the JS stack frame
-
-    size_t requiredMemory = sizeof(GeneratorObject::Data) - sizeof(Value) + sizeof(Value) * stackSize;
-
     Scope scope(gf);
-    Scoped<GeneratorObject> g(scope, scope.engine->memoryManager->allocManaged<GeneratorObject>(requiredMemory, scope.engine->classes[EngineBase::Class_GeneratorObject]));
+    Scoped<GeneratorObject> g(scope, engine->memoryManager->allocManaged<GeneratorObject>(sizeof(GeneratorObject::Data), engine->classes[EngineBase::Class_GeneratorObject]));
     g->setPrototypeOf(ScopedObject(scope, gf->get(scope.engine->id_prototype())));
 
+    // We need to set up a separate JSFrame for the generator, as it's being re-entered
     Heap::GeneratorObject *gp = g->d();
-    gp->stack.size = stackSize;
-    gp->stack.alloc = stackSize;
+    gp->values.set(engine, engine->newArrayObject(argc));
+    gp->jsFrame.set(engine, engine->newArrayObject(CppStackFrame::requiredJSStackFrameSize(function)));
 
     // copy original arguments
-    memcpy(gp->stack.values, argv, argc*sizeof(Value));
-    gp->cppFrame.init(engine, function, gp->stack.values, argc);
-    gp->cppFrame.setupJSFrame(&gp->stack.values[argc], *gf, gf->scope(),
+    for (int i = 0; i < argc; i++)
+        gp->values->arrayData->setArrayData(engine, i, argv[i]);
+
+    gp->cppFrame.init(engine, function, gp->values->arrayData->values.values, argc);
+    gp->cppFrame.setupJSFrame(gp->jsFrame->arrayData->values.values, *gf, gf->scope(),
                               thisObject ? *thisObject : Value::undefinedValue(),
                               Value::undefinedValue());
 
diff --git a/src/qml/jsruntime/qv4generatorobject_p.h b/src/qml/jsruntime/qv4generatorobject_p.h
index 366319723d..10eea5e46b 100644
--- a/src/qml/jsruntime/qv4generatorobject_p.h
+++ b/src/qml/jsruntime/qv4generatorobject_p.h
@@ -90,7 +90,8 @@ struct GeneratorPrototype : FunctionObject {
     Member(class, Pointer, GeneratorFunction *, function) \
     Member(class, NoMark, GeneratorState, state) \
     Member(class, NoMark, CppStackFrame, cppFrame) \
-    Member(class, ValueArray, ValueArray, stack)
+    Member(class, Pointer, ArrayObject *, values) \
+    Member(class, Pointer, ArrayObject *, jsFrame)
 
 DECLARE_HEAP_OBJECT(GeneratorObject, Object) {
     DECLARE_MARKOBJECTS(GeneratorObject);
diff --git a/src/qml/qml/qqmlapplicationengine.cpp b/src/qml/qml/qqmlapplicationengine.cpp
index 907825d28c..2b294ffff6 100644
--- a/src/qml/qml/qqmlapplicationengine.cpp
+++ b/src/qml/qml/qqmlapplicationengine.cpp
@@ -146,6 +146,14 @@ void QQmlApplicationEnginePrivate::finishLoad(QQmlComponent *c)
         break;
     case QQmlComponent::Ready: {
         auto newObj = initialProperties.empty() ? c->create() : c->createWithInitialProperties(initialProperties);
+
+        if (c->isError()) {
+           qWarning() << "QQmlApplicationEngine failed to create component";
+           warning(c->errors());
+           q->objectCreated(nullptr, c->url());
+           break;
+        }
+
         objects << newObj;
         QObject::connect(newObj, &QObject::destroyed, q, [&](QObject *obj) { objects.removeAll(obj); });
         q->objectCreated(objects.constLast(), c->url());
diff --git a/src/qml/qml/qqmlimport.cpp b/src/qml/qml/qqmlimport.cpp
index 6d4fba0aa4..10c6c41338 100644
--- a/src/qml/qml/qqmlimport.cpp
+++ b/src/qml/qml/qqmlimport.cpp
@@ -730,7 +730,8 @@ bool QQmlImportInstance::resolveType(QQmlTypeLoader *typeLoader, const QHashedSt
             if (containingType.isValid()) {
                 // we currently cannot reference a Singleton inside itself
                 // in that case, containingType is still invalid
-                if (int icID = containingType.lookupInlineComponentIdByName(typeStr) != -1) {
+                int icID = containingType.lookupInlineComponentIdByName(typeStr);
+                if (icID != -1) {
                     *type_return = containingType.lookupInlineComponentById(icID);
                 } else {
                     auto icType = createICType();
@@ -1408,11 +1409,16 @@ QQmlImports::LocalQmldirResult QQmlImportsPrivate::locateLocalQmldir(
         if (!absoluteFilePath.isEmpty()) {
             QString url;
             const QStringRef absolutePath = absoluteFilePath.leftRef(absoluteFilePath.lastIndexOf(Slash) + 1);
-            if (absolutePath.at(0) == Colon)
+            if (absolutePath.at(0) == Colon) {
                 url = QLatin1String("qrc") + absolutePath;
-            else
+            } else {
                 url = QUrl::fromLocalFile(absolutePath.toString()).toString();
-
+                // This handles the UNC path case as when the path is retrieved from the QUrl it
+                // will convert the host name from upper case to lower case. So the absoluteFilePath
+                // is changed at this point to make sure it will match later on in that case.
+                if (absoluteFilePath.startsWith(QLatin1String("//")))
+                    absoluteFilePath = QUrl::fromLocalFile(absoluteFilePath).toString(QUrl::RemoveScheme);
+            }
             QQmlImportDatabase::QmldirCache *cache = new QQmlImportDatabase::QmldirCache;
             cache->versionMajor = vmaj;
             cache->versionMinor = vmin;
diff --git a/src/qml/qml/qqmlincubator.cpp b/src/qml/qml/qqmlincubator.cpp
index 0ad013e90b..244f9ad292 100644
--- a/src/qml/qml/qqmlincubator.cpp
+++ b/src/qml/qml/qqmlincubator.cpp
@@ -330,7 +330,7 @@ void QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt &i)
             ddata->rootObjectInCreation = false;
             if (q) {
                 q->setInitialState(result);
-                if (!creator->requiredProperties().empty()) {
+                if (creator && !creator->requiredProperties().empty()) {
                     const auto& unsetRequiredProperties = creator->requiredProperties();
                     for (const auto& unsetRequiredProperty: unsetRequiredProperties)
                         errors << QQmlComponentPrivate::unsetRequiredPropertyToQQmlError(unsetRequiredProperty);
diff --git a/src/qml/qml/qqmllocale.cpp b/src/qml/qml/qqmllocale.cpp
index 7af6af276a..f55bbe7ffc 100644
--- a/src/qml/qml/qqmllocale.cpp
+++ b/src/qml/qml/qqmllocale.cpp
@@ -891,7 +891,7 @@ ReturnedValue QQmlLocale::method_localeCompare(const QV4::FunctionObject *b, con
 */
 
 /*!
-    \qmlproperty enumeration QtQml::Locale::NumberOption
+    \qmlproperty enumeration QtQml::Locale::numberOptions
 
     Holds a set of options for number-to-string and
     string-to-number conversions.
diff --git a/src/qml/qml/qqmlmetatype.cpp b/src/qml/qml/qqmlmetatype.cpp
index be4a79297c..40300b1fe3 100644
--- a/src/qml/qml/qqmlmetatype.cpp
+++ b/src/qml/qml/qqmlmetatype.cpp
@@ -1260,6 +1260,16 @@ void QQmlMetaType::unregisterType(int typeIndex)
     }
 }
 
+static bool hasActiveInlineComponents(const QQmlTypePrivate *d)
+{
+    for (const QQmlType &ic : qAsConst(d->objectIdToICType)) {
+        const QQmlTypePrivate *icPriv = ic.priv();
+        if (icPriv && icPriv->count() > 1)
+            return true;
+    }
+    return false;
+}
+
 void QQmlMetaType::freeUnusedTypesAndCaches()
 {
     QQmlMetaTypeDataPtr data;
@@ -1274,7 +1284,7 @@ void QQmlMetaType::freeUnusedTypesAndCaches()
         QList<QQmlType>::Iterator it = data->types.begin();
         while (it != data->types.end()) {
             const QQmlTypePrivate *d = (*it).priv();
-            if (d && d->count() == 1) {
+            if (d && d->count() == 1 && !hasActiveInlineComponents(d)) {
                 deletedAtLeastOneType = true;
 
                 removeQQmlTypePrivate(data->idToType, d);
diff --git a/src/qml/qml/qqmlobjectcreator.cpp b/src/qml/qml/qqmlobjectcreator.cpp
index 1c8f2b2091..6aeb567a86 100644
--- a/src/qml/qml/qqmlobjectcreator.cpp
+++ b/src/qml/qml/qqmlobjectcreator.cpp
@@ -679,8 +679,7 @@ void QQmlObjectCreator::setPropertyValue(const QQmlPropertyData *property, const
         // otherwise, try a custom type assignment
         QString stringValue = compilationUnit->bindingValueAsString(binding);
         QQmlMetaType::StringConverter converter = QQmlMetaType::customStringConverter(property->propType());
-        Q_ASSERT(converter);
-        QVariant value = (*converter)(stringValue);
+        QVariant value = converter ? (*converter)(stringValue) : QVariant();
 
         QMetaProperty metaProperty = _qobject->metaObject()->property(property->coreIndex());
         if (value.isNull() || metaProperty.userType() != property->propType()) {
diff --git a/src/qml/qml/qqmlproperty.cpp b/src/qml/qml/qqmlproperty.cpp
index 8521de6ab3..9eb81e566e 100644
--- a/src/qml/qml/qqmlproperty.cpp
+++ b/src/qml/qml/qqmlproperty.cpp
@@ -918,6 +918,8 @@ QQmlPropertyPrivate::signalExpression(const QQmlProperty &that)
     if (!(that.type() & QQmlProperty::SignalProperty))
         return nullptr;
 
+    if (!that.d->object)
+        return nullptr;
     QQmlData *data = QQmlData::get(that.d->object);
     if (!data)
         return nullptr;
@@ -957,6 +959,8 @@ void QQmlPropertyPrivate::takeSignalExpression(const QQmlProperty &that,
         return;
     }
 
+    if (!that.d->object)
+        return;
     QQmlData *data = QQmlData::get(that.d->object, nullptr != expr);
     if (!data)
         return;
diff --git a/src/qmlmodels/qqmldelegatemodel.cpp b/src/qmlmodels/qqmldelegatemodel.cpp
index e6aff955fe..26ded63c41 100644
--- a/src/qmlmodels/qqmldelegatemodel.cpp
+++ b/src/qmlmodels/qqmldelegatemodel.cpp
@@ -1609,7 +1609,7 @@ void QQmlDelegateModelPrivate::itemsRemoved(
         removed[i] = 0;
 
     for (const Compositor::Remove &remove : removes) {
-        for (; cacheIndex < remove.cacheIndex; ++cacheIndex)
+        for (; cacheIndex < remove.cacheIndex && cacheIndex < m_cache.size(); ++cacheIndex)
             incrementIndexes(m_cache.at(cacheIndex), m_groupCount, removed);
 
         for (int i = 1; i < m_groupCount; ++i) {
diff --git a/src/qmltest/quicktest.cpp b/src/qmltest/quicktest.cpp
index 312769b8d3..150db84533 100644
--- a/src/qmltest/quicktest.cpp
+++ b/src/qmltest/quicktest.cpp
@@ -309,14 +309,17 @@ private:
 
         if (!object) // Start at root of compilation unit if not enumerating a specific child
             object = compilationUnit->objectAt(0);
+        if (object->flags & Object::IsInlineComponentRoot)
+            return result;
 
         if (const auto superTypeUnit = compilationUnit->resolvedTypes.value(
                     object->inheritedTypeNameIndex)->compilationUnit()) {
             // We have a non-C++ super type, which could indicate we're a subtype of a TestCase
             if (testCaseType.isValid() && superTypeUnit->url() == testCaseType.sourceUrl())
                 result.isTestCase = true;
-            else
+            else if (superTypeUnit->url() != compilationUnit->url()) { // urls are the same for inline component, avoid infinite recursion
                 result = enumerateTestCases(superTypeUnit);
+            }
 
             if (result.isTestCase) {
                 // Look for override of name in this type
diff --git a/src/quick/items/qquickitem.cpp b/src/quick/items/qquickitem.cpp
index 31cd317dc9..497672b497 100644
--- a/src/quick/items/qquickitem.cpp
+++ b/src/quick/items/qquickitem.cpp
@@ -3071,8 +3071,9 @@ Returns a transform that maps points from item space into window space.
 */
 QTransform QQuickItemPrivate::itemToWindowTransform() const
 {
-    // XXX todo
-    QTransform rv = parentItem?QQuickItemPrivate::get(parentItem)->itemToWindowTransform():QTransform();
+    // item's parent must not be itself, otherwise calling itemToWindowTransform() on it is infinite recursion
+    Q_ASSERT(!parentItem || QQuickItemPrivate::get(parentItem) != this);
+    QTransform rv = parentItem ? QQuickItemPrivate::get(parentItem)->itemToWindowTransform() : QTransform();
     itemToParentTransform(rv);
     return rv;
 }
@@ -7392,6 +7393,12 @@ bool QQuickItem::isUnderMouse() const
     if (!d->window)
         return false;
 
+    // QQuickWindow handles QEvent::Leave to reset the lastMousePosition
+    // FIXME: Using QPointF() as the reset value means an item will not be
+    // under the mouse if the mouse is at 0,0 of the window.
+    if (QQuickWindowPrivate::get(d->window)->lastMousePosition == QPointF())
+        return false;
+
     QPointF cursorPos = QGuiApplicationPrivate::lastCursorPosition;
     return contains(mapFromScene(d->window->mapFromGlobal(cursorPos.toPoint())));
 }
@@ -7806,22 +7813,23 @@ void QQuickItem::setKeepTouchGrab(bool keep)
 }
 
 /*!
-  \qmlmethod bool QtQuick::Item::contains(point point)
+    \qmlmethod bool QtQuick::Item::contains(point point)
 
-  Returns true if this item contains \a point, which is in local coordinates;
-  returns false otherwise.
-  */
+    Returns \c true if this item contains \a point, which is in local coordinates;
+    returns \c false otherwise.  This is the same check that is used for
+    hit-testing a QEventPoint during event delivery, and is affected by
+    containmentMask() if it is set.
+*/
 /*!
-  Returns true if this item contains \a point, which is in local coordinates;
-  returns false otherwise.
+    Returns \c true if this item contains \a point, which is in local coordinates;
+    returns \c false otherwise.
 
-  This function can be overwritten in order to handle point collisions in items
-  with custom shapes. The default implementation checks if the point is inside
-  the item's bounding rect.
+    This function can be overridden in order to handle point collisions in items
+    with custom shapes. The default implementation checks whether the point is inside
+    containmentMask() if it is set, or inside the bounding box otherwise.
 
-  Note that this method is generally used to check whether the item is under the mouse cursor,
-  and for that reason, the implementation of this function should be as light-weight
-  as possible.
+    \note This method is used for hit-testing each QEventPoint during event
+    delivery, so the implementation should be kept as lightweight as possible.
 */
 bool QQuickItem::contains(const QPointF &point) const
 {
diff --git a/src/quick/items/qquickitemanimation.cpp b/src/quick/items/qquickitemanimation.cpp
index 23694e2de3..dfb56ccc00 100644
--- a/src/quick/items/qquickitemanimation.cpp
+++ b/src/quick/items/qquickitemanimation.cpp
@@ -230,8 +230,8 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act
 {
     Q_D(QQuickParentAnimation);
 
-    QQuickParentAnimationData *data = new QQuickParentAnimationData;
-    QQuickParentAnimationData *viaData = new QQuickParentAnimationData;
+    std::unique_ptr<QQuickParentAnimationData> data(new QQuickParentAnimationData);
+    std::unique_ptr<QQuickParentAnimationData> viaData(new QQuickParentAnimationData);
 
     bool hasExplicit = false;
     if (d->target && d->newParent) {
@@ -377,8 +377,8 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act
         QParallelAnimationGroupJob *ag = new QParallelAnimationGroupJob;
 
         if (d->via)
-            viaAction->setAnimAction(viaData);
-        targetAction->setAnimAction(data);
+            viaAction->setAnimAction(viaData.release());
+        targetAction->setAnimAction(data.release());
 
         //take care of any child animations
         bool valid = d->defaultProperty.isValid();
@@ -405,9 +405,6 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act
             topLevelGroup->appendAnimation(d->via ? viaAction : targetAction);
         }
         return initInstance(topLevelGroup);
-    } else {
-        delete data;
-        delete viaData;
     }
     return nullptr;
 }
diff --git a/src/quick/items/qquicklistview.cpp b/src/quick/items/qquicklistview.cpp
index 0f9394f695..1001b34c3c 100644
--- a/src/quick/items/qquicklistview.cpp
+++ b/src/quick/items/qquicklistview.cpp
@@ -382,6 +382,83 @@ private:
     }
 };
 
+/*! \internal
+    \brief A helper class for iterating over a model that might change
+
+    When populating the ListView from a model under normal
+    circumstances, we would iterate over the range of model indices
+    correspondning to the visual range, and basically call
+    createItem(index++) in order to create each item.
+
+    This will also emit Component.onCompleted() for each item, which
+    might do some weird things...  For instance, it might remove itself
+    from the model, and this might change model count and the indices
+    of the other subsequent entries in the model.
+
+    This class takes such changes to the model into consideration while
+    iterating, and will adjust the iterator index and keep track of
+    whether the iterator has reached the end of the range.
+
+    It keeps track of changes to the model by connecting to
+    QQmlInstanceModel::modelUpdated() from its constructor.
+    When destroyed, it will automatically disconnect. You can
+    explicitly disconnect earlier by calling \fn disconnect().
+*/
+class MutableModelIterator {
+public:
+    MutableModelIterator(QQmlInstanceModel *model, int iBegin, int iEnd)
+        : removedAtIndex(false)
+        , backwards(iEnd < iBegin)
+    {
+        conn = QObject::connect(model, &QQmlInstanceModel::modelUpdated,
+                [&] (const QQmlChangeSet &changeSet, bool /*reset*/)
+        {
+            for (const QQmlChangeSet::Change &rem : changeSet.removes()) {
+                idxEnd -= rem.count;
+                if (rem.start() <= index) {
+                    index -= rem.count;
+                    if (index < rem.start() + rem.count)
+                        removedAtIndex = true; // model index was removed
+                }
+            }
+            for (const QQmlChangeSet::Change &ins : changeSet.inserts()) {
+                idxEnd += ins.count;
+                if (ins.start() <= index)
+                    index += ins.count;
+            }
+        }
+        );
+        index = iBegin;
+        idxEnd = iEnd;
+    }
+
+    bool hasNext() const {
+        return backwards ? index > idxEnd : index < idxEnd;
+    }
+
+    void next() { index += (backwards ? -1 : +1); }
+
+    ~MutableModelIterator()
+    {
+        disconnect();
+    }
+
+    void disconnect()
+    {
+        if (conn) {
+            QObject::disconnect(conn);
+            conn = QMetaObject::Connection();   // set to nullptr
+        }
+    }
+    int index = 0;
+    int idxEnd;
+    unsigned removedAtIndex : 1;
+    unsigned backwards : 1;
+private:
+    QMetaObject::Connection conn;
+};
+
+
 //----------------------------------------------------------------------------
 
 bool QQuickListViewPrivate::isContentFlowReversed() const
@@ -3570,7 +3647,6 @@ bool QQuickListViewPrivate::applyInsertionChange(const QQmlChangeSet::Change &ch
     if (insertResult->visiblePos.isValid() && pos < insertResult->visiblePos) {
         // Insert items before the visible item.
         int insertionIdx = index;
-        int i = 0;
         qreal from = tempPos - displayMarginBeginning - buffer;
 
         if (insertionIdx < visibleIndex) {
@@ -3579,15 +3655,18 @@ bool QQuickListViewPrivate::applyInsertionChange(const QQmlChangeSet::Change &ch
                 insertResult->sizeChangesBeforeVisiblePos += count * (averageSize + spacing);
             }
         } else {
-            for (i = count-1; i >= 0 && pos >= from; --i) {
+            MutableModelIterator it(model, modelIndex + count - 1, modelIndex -1);
+            for (; it.hasNext() && pos >= from; it.next()) {
                 // item is before first visible e.g. in cache buffer
                 FxViewItem *item = nullptr;
-                if (change.isMove() && (item = currentChanges.removedItems.take(change.moveKey(modelIndex + i))))
-                    item->index = modelIndex + i;
+                if (change.isMove() && (item = currentChanges.removedItems.take(change.moveKey(it.index))))
+                    item->index = it.index;
                 if (!item)
-                    item = createItem(modelIndex + i, QQmlIncubator::Synchronous);
+                    item = createItem(it.index, QQmlIncubator::Synchronous);
                 if (!item)
                     return false;
+                if (it.removedAtIndex)
+                    continue;
 
                 visibleAffected = true;
                 visibleItems.insert(insertionIdx, item);
@@ -3620,16 +3699,20 @@ bool QQuickListViewPrivate::applyInsertionChange(const QQmlChangeSet::Change &ch
         }
 
     } else {
-        for (int i = 0; i < count && pos <= lastVisiblePos; ++i) {
+        MutableModelIterator it(model, modelIndex, modelIndex + count);
+        for (; it.hasNext() && pos <= lastVisiblePos; it.next()) {
             visibleAffected = true;
             FxViewItem *item = nullptr;
-            if (change.isMove() && (item = currentChanges.removedItems.take(change.moveKey(modelIndex + i))))
-                item->index = modelIndex + i;
+            if (change.isMove() && (item = currentChanges.removedItems.take(change.moveKey(it.index))))
+                item->index = it.index;
             bool newItem = !item;
+            it.removedAtIndex = false;
             if (!item)
-                item = createItem(modelIndex + i, QQmlIncubator::Synchronous);
+                item = createItem(it.index, QQmlIncubator::Synchronous);
             if (!item)
                 return false;
+            if (it.removedAtIndex)
+                continue;
 
             visibleItems.insert(index, item);
             if (index == 0)
@@ -3650,6 +3733,7 @@ bool QQuickListViewPrivate::applyInsertionChange(const QQmlChangeSet::Change &ch
             pos += item->size() + spacing;
             ++index;
         }
+        it.disconnect();
 
         if (0 < index && index < visibleItems.count()) {
             FxViewItem *prevItem = visibleItems.at(index - 1);
diff --git a/src/quick/items/qquicktableview.cpp b/src/quick/items/qquicktableview.cpp
index 1349d308d7..f9454fc5cb 100644
--- a/src/quick/items/qquicktableview.cpp
+++ b/src/quick/items/qquicktableview.cpp
@@ -642,6 +642,28 @@ int QQuickTableViewPrivate::nextVisibleEdgeIndex(Qt::Edge edge, int startIndex)
     return foundIndex;
 }
 
+bool QQuickTableViewPrivate::allColumnsLoaded()
+{
+    // Returns true if all the columns in the model (that are not
+    // hidden by the columnWidthProvider) are currently loaded and visible.
+    const bool firstColumnLoaded = nextVisibleEdgeIndexAroundLoadedTable(Qt::LeftEdge) == kEdgeIndexAtEnd;
+    if (!firstColumnLoaded)
+        return false;
+    bool lastColumnLoaded = nextVisibleEdgeIndexAroundLoadedTable(Qt::RightEdge) == kEdgeIndexAtEnd;
+    return lastColumnLoaded;
+}
+
+bool QQuickTableViewPrivate::allRowsLoaded()
+{
+    // Returns true if all the rows in the model (that are not hidden
+    // by the columnWidthProvider) are currently loaded and visible.
+    const bool firstColumnLoaded = nextVisibleEdgeIndexAroundLoadedTable(Qt::TopEdge) == kEdgeIndexAtEnd;
+    if (!firstColumnLoaded)
+        return false;
+    bool lastColumnLoaded = nextVisibleEdgeIndexAroundLoadedTable(Qt::BottomEdge) == kEdgeIndexAtEnd;
+    return lastColumnLoaded;
+}
+
 void QQuickTableViewPrivate::updateContentWidth()
 {
     // Note that we actually never really know what the content size / size of the full table will
@@ -927,6 +949,15 @@ void QQuickTableViewPrivate::syncLoadedTableRectFromLoadedTable()
 
 QQuickTableViewPrivate::RebuildOptions QQuickTableViewPrivate::checkForVisibilityChanges()
 {
+    // This function will check if there are any visibility changes among
+    // the _already loaded_ rows and columns. Note that there can be rows
+    // and columns to the bottom or right that was not loaded, but should
+    // now become visible (in case there is free space around the table).
+    if (loadedItems.isEmpty()) {
+        // Report no changes
+        return RebuildOption::None;
+    }
+
     // Go through all columns from first to last, find the columns that used
     // to be hidden and not loaded, and check if they should become visible
     // (and vice versa). If there is a change, we need to rebuild.
@@ -971,9 +1002,6 @@ QQuickTableViewPrivate::RebuildOptions QQuickTableViewPrivate::checkForVisibilit
 
 void QQuickTableViewPrivate::forceLayout()
 {
-    if (loadedItems.isEmpty())
-        return;
-
     clearEdgeSizeCache();
     RebuildOptions rebuildOptions = RebuildOption::None;
 
@@ -1923,12 +1951,12 @@ void QQuickTableViewPrivate::layoutAfterLoadingInitialTable()
     relayoutTableItems();
     syncLoadedTableRectFromLoadedTable();
 
-    if (rebuildOptions.testFlag(RebuildOption::CalculateNewContentWidth)) {
+    if (rebuildOptions.testFlag(RebuildOption::CalculateNewContentWidth) || allColumnsLoaded()) {
         updateAverageColumnWidth();
         updateContentWidth();
     }
 
-    if (rebuildOptions.testFlag(RebuildOption::CalculateNewContentHeight)) {
+    if (rebuildOptions.testFlag(RebuildOption::CalculateNewContentHeight) || allRowsLoaded()) {
         updateAverageRowHeight();
         updateContentHeight();
     }
diff --git a/src/quick/items/qquicktableview_p_p.h b/src/quick/items/qquicktableview_p_p.h
index 403a77c3ea..df52672424 100644
--- a/src/quick/items/qquicktableview_p_p.h
+++ b/src/quick/items/qquicktableview_p_p.h
@@ -368,6 +368,8 @@ public:
 
     int nextVisibleEdgeIndex(Qt::Edge edge, int startIndex);
     int nextVisibleEdgeIndexAroundLoadedTable(Qt::Edge edge);
+    bool allColumnsLoaded();
+    bool allRowsLoaded();
     inline int edgeToArrayIndex(Qt::Edge edge);
     void clearEdgeSizeCache();
 
diff --git a/src/quick/items/qquicktext.cpp b/src/quick/items/qquicktext.cpp
index b18d03a20a..6230186933 100644
--- a/src/quick/items/qquicktext.cpp
+++ b/src/quick/items/qquicktext.cpp
@@ -1179,8 +1179,8 @@ QRectF QQuickTextPrivate::setupTextLayout(qreal *const baseline)
     QTextLine firstLine = visibleCount == 1 && elideLayout
             ? elideLayout->lineAt(0)
             : layout.lineAt(0);
-    Q_ASSERT(firstLine.isValid());
-    *baseline = firstLine.y() + firstLine.ascent();
+    if (firstLine.isValid())
+        *baseline = firstLine.y() + firstLine.ascent();
 
     if (!customLayout)
         br.setHeight(height);
diff --git a/src/quick/items/qquicktextcontrol.cpp b/src/quick/items/qquicktextcontrol.cpp
index 8db2a38b11..742d36a789 100644
--- a/src/quick/items/qquicktextcontrol.cpp
+++ b/src/quick/items/qquicktextcontrol.cpp
@@ -949,6 +949,12 @@ void QQuickTextControlPrivate::keyPressEvent(QKeyEvent *e)
 process:
     {
         if (q->isAcceptableInput(e)) {
+#if QT_CONFIG(im)
+            // QTBUG-90362
+            // Before key press event will be handled, pre-editing part should be finished
+            if (isPreediting())
+                commitPreedit();
+#endif
             if (overwriteMode
                 // no need to call deleteChar() if we have a selection, insertText
                 // does it already
diff --git a/src/quick/items/qquicktextinput.cpp b/src/quick/items/qquicktextinput.cpp
index 079bf58abe..0e7f52e816 100644
--- a/src/quick/items/qquicktextinput.cpp
+++ b/src/quick/items/qquicktextinput.cpp
@@ -2952,6 +2952,7 @@ void QQuickTextInputPrivate::setTopPadding(qreal value, bool reset)
     }
     if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding()))) {
         updateLayout();
+        q->updateCursorRectangle();
         emit q->topPaddingChanged();
     }
 }
@@ -2966,6 +2967,7 @@ void QQuickTextInputPrivate::setLeftPadding(qreal value, bool reset)
     }
     if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding()))) {
         updateLayout();
+        q->updateCursorRectangle();
         emit q->leftPaddingChanged();
     }
 }
@@ -2980,6 +2982,7 @@ void QQuickTextInputPrivate::setRightPadding(qreal value, bool reset)
     }
     if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding()))) {
         updateLayout();
+        q->updateCursorRectangle();
         emit q->rightPaddingChanged();
     }
 }
@@ -2994,6 +2997,7 @@ void QQuickTextInputPrivate::setBottomPadding(qreal value, bool reset)
     }
     if ((!reset && !qFuzzyCompare(oldPadding, value)) || (reset && !qFuzzyCompare(oldPadding, padding()))) {
         updateLayout();
+        q->updateCursorRectangle();
         emit q->bottomPaddingChanged();
     }
 }
@@ -3429,17 +3433,19 @@ void QQuickTextInputPrivate::processInputMethodEvent(QInputMethodEvent *event)
     if (event->replacementStart() <= 0)
         c += event->commitString().length() - qMin(-event->replacementStart(), event->replacementLength());
 
-    m_cursor += event->replacementStart();
-    if (m_cursor < 0)
-        m_cursor = 0;
+    int cursorInsertPos = m_cursor + event->replacementStart();
+    if (cursorInsertPos < 0)
+        cursorInsertPos = 0;
 
     // insert commit string
     if (event->replacementLength()) {
-        m_selstart = m_cursor;
+        m_selstart = cursorInsertPos;
         m_selend = m_selstart + event->replacementLength();
         m_selend = qMin(m_selend, m_text.length());
         removeSelectedText();
     }
+    m_cursor = cursorInsertPos;
+
     if (!event->commitString().isEmpty()) {
         internalInsert(event->commitString());
         cursorPositionChanged = true;
@@ -3466,8 +3472,12 @@ void QQuickTextInputPrivate::processInputMethodEvent(QInputMethodEvent *event)
     }
     QString oldPreeditString = m_textLayout.preeditAreaText();
     m_textLayout.setPreeditArea(m_cursor, event->preeditString());
-    if (oldPreeditString != m_textLayout.preeditAreaText())
+    if (oldPreeditString != m_textLayout.preeditAreaText()) {
         emit q->preeditTextChanged();
+        if (!event->preeditString().isEmpty() && m_undoPreeditState == -1)
+            // Pre-edit text started. Remember state for undo purpose.
+            m_undoPreeditState = priorState;
+    }
     const int oldPreeditCursor = m_preeditCursor;
     m_preeditCursor = event->preeditString().length();
     hasImState = !event->preeditString().isEmpty();
@@ -3509,6 +3519,11 @@ void QQuickTextInputPrivate::processInputMethodEvent(QInputMethodEvent *event)
         q->updateInputMethod(Qt::ImCursorRectangle | Qt::ImAnchorRectangle
                             | Qt::ImCurrentSelection);
     }
+
+    // Empty pre-edit text handled. Clean m_undoPreeditState
+    if (event->preeditString().isEmpty())
+        m_undoPreeditState = -1;
+
 }
 #endif // im
 
@@ -3585,6 +3600,12 @@ bool QQuickTextInputPrivate::finishChange(int validateFromState, bool update, bo
         if (m_maskData)
             checkIsValid();
 
+#if QT_CONFIG(im)
+        // If we were during pre-edit, validateFromState should point to the state before pre-edit
+        // has been started. Choose the correct oldest remembered state
+        if (m_undoPreeditState >= 0 && (m_undoPreeditState < validateFromState || validateFromState < 0))
+                validateFromState = m_undoPreeditState;
+#endif
         if (validateFromState >= 0 && wasValidInput && !m_validInput) {
             if (m_transactions.count())
                 return false;
@@ -3657,6 +3678,9 @@ void QQuickTextInputPrivate::internalSetText(const QString &txt, int pos, bool e
     }
     m_history.clear();
     m_undoState = 0;
+#if QT_CONFIG(im)
+    m_undoPreeditState = -1;
+#endif
     m_cursor = (pos < 0 || pos > m_text.length()) ? m_text.length() : pos;
     m_textDirty = (oldText != m_text);
 
@@ -4712,6 +4736,7 @@ void QQuickTextInput::setPadding(qreal padding)
 
     d->extra.value().padding = padding;
     d->updateLayout();
+    updateCursorRectangle();
     emit paddingChanged();
     if (!d->extra.isAllocated() || !d->extra->explicitTopPadding)
         emit topPaddingChanged();
diff --git a/src/quick/items/qquicktextinput_p_p.h b/src/quick/items/qquicktextinput_p_p.h
index 7fbba49405..fa92e608b7 100644
--- a/src/quick/items/qquicktextinput_p_p.h
+++ b/src/quick/items/qquicktextinput_p_p.h
@@ -110,6 +110,7 @@ public:
         , m_cursor(0)
 #if QT_CONFIG(im)
         , m_preeditCursor(0)
+        , m_undoPreeditState(-1)
 #endif
         , m_blinkEnabled(false)
         , m_blinkTimer(0)
@@ -248,6 +249,7 @@ public:
     int m_cursor;
 #if QT_CONFIG(im)
     int m_preeditCursor;
+    int m_undoPreeditState;
 #endif
     bool m_blinkEnabled;
     int m_blinkTimer;
@@ -335,7 +337,13 @@ public:
 
     bool isUndoAvailable() const { return !m_readOnly && m_undoState; }
     bool isRedoAvailable() const { return !m_readOnly && m_undoState < (int)m_history.size(); }
-    void clearUndo() { m_history.clear(); m_undoState = 0; }
+    void clearUndo() {
+            m_history.clear();
+            m_undoState = 0;
+#if QT_CONFIG(im)
+            m_undoPreeditState = -1;
+#endif
+    }
 
     bool allSelected() const { return !m_text.isEmpty() && m_selstart == 0 && m_selend == (int)m_text.length(); }
     bool hasSelectedText() const { return !m_text.isEmpty() && m_selend > m_selstart; }
diff --git a/src/quick/items/qquickwindow.cpp b/src/quick/items/qquickwindow.cpp
index eea1e93f32..c956c85091 100644
--- a/src/quick/items/qquickwindow.cpp
+++ b/src/quick/items/qquickwindow.cpp
@@ -450,15 +450,14 @@ void QQuickWindow::physicalDpiChanged()
 void QQuickWindow::handleScreenChanged(QScreen *screen)
 {
     Q_D(QQuickWindow);
+    disconnect(d->physicalDpiChangedConnection);
     if (screen) {
         physicalDpiChanged();
         // When physical DPI changes on the same screen, either the resolution or the device pixel
         // ratio changed. We must check what it is. Device pixel ratio does not have its own
         // ...Changed() signal.
-        d->physicalDpiChangedConnection = connect(screen, SIGNAL(physicalDotsPerInchChanged(qreal)),
-                                                  this, SLOT(physicalDpiChanged()));
-    } else {
-        disconnect(d->physicalDpiChangedConnection);
+        d->physicalDpiChangedConnection = connect(screen, &QScreen::physicalDotsPerInchChanged,
+                                                  this, &QQuickWindow::physicalDpiChanged);
     }
 
     d->forcePolish();
diff --git a/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp b/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp
index 73c02d793b..31671c8639 100644
--- a/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp
+++ b/src/quick/scenegraph/coreapi/qsgbatchrenderer.cpp
@@ -1958,7 +1958,11 @@ void Renderer::prepareAlphaBatches()
 
             if (gni->clipList() == gnj->clipList()
                     && gni->geometry()->drawingMode() == gnj->geometry()->drawingMode()
-                    && (gni->geometry()->drawingMode() != QSGGeometry::DrawLines || gni->geometry()->lineWidth() == gnj->geometry()->lineWidth())
+                    && (gni->geometry()->drawingMode() != QSGGeometry::DrawLines
+                        || (gni->geometry()->lineWidth() == gnj->geometry()->lineWidth()
+                            // Must not do overlap checks when the line width is not 1,
+                            // we have no knowledge how such lines are rasterized.
+                            && gni->geometry()->lineWidth() == 1.0f))
                     && gni->geometry()->attributes() == gnj->geometry()->attributes()
                     && gni->inheritedOpacity() == gnj->inheritedOpacity()
                     && gni->activeMaterial()->type() == gnj->activeMaterial()->type()
@@ -4444,6 +4448,9 @@ void Renderer::renderRenderNode(Batch *batch) // legacy (GL-only)
         opacity = opacity->parent();
     }
 
+    // having DepthAwareRendering leaves depth test on in the alpha pass
+    const bool depthTestWasEnabled = m_useDepthBuffer;
+
     glDisable(GL_STENCIL_TEST);
     glDisable(GL_SCISSOR_TEST);
     glDisable(GL_DEPTH_TEST);
@@ -4478,7 +4485,9 @@ void Renderer::renderRenderNode(Batch *batch) // legacy (GL-only)
         m_currentClipType = ClipState::NoClip;
     }
 
-    if (changes & QSGRenderNode::DepthState)
+    if (depthTestWasEnabled)
+        glEnable(GL_DEPTH_TEST);
+    else if (changes & QSGRenderNode::DepthState)
         glDisable(GL_DEPTH_TEST);
 
     if (changes & QSGRenderNode::ColorState)
diff --git a/tests/auto/qml/qmltyperegistrar/foreign/foreign.pro b/tests/auto/qml/qmltyperegistrar/foreign/foreign.pro
index 87521eac43..006439b58a 100644
--- a/tests/auto/qml/qmltyperegistrar/foreign/foreign.pro
+++ b/tests/auto/qml/qmltyperegistrar/foreign/foreign.pro
@@ -2,7 +2,6 @@ TEMPLATE = lib
 QT = core
 
 macos:CONFIG -= app_bundle
-CONFIG -= debug_and_release_target
 
 SOURCES = foreign.cpp
 HEADERS = foreign.h
diff --git a/tests/auto/qml/qmltyperegistrar/tst_qmltyperegistrar.pro b/tests/auto/qml/qmltyperegistrar/tst_qmltyperegistrar.pro
index fe21b122c2..3589743f0c 100644
--- a/tests/auto/qml/qmltyperegistrar/tst_qmltyperegistrar.pro
+++ b/tests/auto/qml/qmltyperegistrar/tst_qmltyperegistrar.pro
@@ -17,4 +17,9 @@ QML_IMPORT_NAME = QmlTypeRegistrarTest
 QML_IMPORT_VERSION = 1.0
 
 INCLUDEPATH += foreign
-LIBS += -Lforeign -lforeign
+debug_and_release {
+    CONFIG(release, debug|release): LIBS += -Lforeign/release -lforeign
+    else:  LIBS += -Lforeign/debug -lforeign
+} else {
+    LIBS += -Lforeign -lforeign
+}
diff --git a/tests/auto/qml/qqmlapplicationengine/data/Required.qml b/tests/auto/qml/qqmlapplicationengine/data/Required.qml
new file mode 100644
index 0000000000..acf4a00ce6
--- /dev/null
+++ b/tests/auto/qml/qqmlapplicationengine/data/Required.qml
@@ -0,0 +1,6 @@
+import QtQml 2.15
+
+QtObject
+{
+    required property int foo
+}
diff --git a/tests/auto/qml/qqmlapplicationengine/data/requiredViolation.qml b/tests/auto/qml/qqmlapplicationengine/data/requiredViolation.qml
new file mode 100644
index 0000000000..c5de4661a9
--- /dev/null
+++ b/tests/auto/qml/qqmlapplicationengine/data/requiredViolation.qml
@@ -0,0 +1,3 @@
+import QtQml 2.15
+
+Required {}
diff --git a/tests/auto/qml/qqmlapplicationengine/tst_qqmlapplicationengine.cpp b/tests/auto/qml/qqmlapplicationengine/tst_qqmlapplicationengine.cpp
index f636e527c3..4306c7b8ca 100644
--- a/tests/auto/qml/qqmlapplicationengine/tst_qqmlapplicationengine.cpp
+++ b/tests/auto/qml/qqmlapplicationengine/tst_qqmlapplicationengine.cpp
@@ -56,6 +56,7 @@ private slots:
     void translationChange();
     void setInitialProperties();
     void failureToLoadTriggersWarningSignal();
+    void errorWhileCreating();
 
 private:
     QString buildDir;
@@ -333,6 +334,23 @@ void tst_qqmlapplicationengine::failureToLoadTriggersWarningSignal()
     QTRY_COMPARE(warningObserver.count(), 1);
 }
 
+void tst_qqmlapplicationengine::errorWhileCreating()
+{
+    auto url = testFileUrl("requiredViolation.qml");
+    QQmlApplicationEngine test;
+    QSignalSpy observer(&test, &QQmlApplicationEngine::objectCreated);
+
+    QTest::ignoreMessage(QtMsgType::QtWarningMsg, "QQmlApplicationEngine failed to create component");
+    QTest::ignoreMessage(QtMsgType::QtWarningMsg, qPrintable(QStringLiteral("%1:5:5: Required property foo was not initialized").arg(testFileUrl("Required.qml").toString())));
+
+    test.load(url);
+
+    QTRY_COMPARE(observer.count(), 1);
+    QList<QVariant> args = observer.takeFirst();
+    QVERIFY(args.at(0).isNull());
+    QCOMPARE(args.at(1).toUrl(), url);
+}
+
 QTEST_MAIN(tst_qqmlapplicationengine)
 
 #include "tst_qqmlapplicationengine.moc"
diff --git a/tests/auto/qml/qqmldelegatemodel/data/removeFromGroup.qml b/tests/auto/qml/qqmldelegatemodel/data/removeFromGroup.qml
new file mode 100644
index 0000000000..4ae1a8aacc
--- /dev/null
+++ b/tests/auto/qml/qqmldelegatemodel/data/removeFromGroup.qml
@@ -0,0 +1,45 @@
+import QtQuick 2.8
+import QtQml.Models 2.1
+
+Item {
+    id: root
+    width: 200
+    height: 200
+
+    DelegateModel {
+        id: visualModel
+        model: ListModel {
+            id: myLM
+            ListElement {
+                name: "Apple"
+            }
+            ListElement {
+                name: "Banana"
+            }
+            ListElement {
+                name: "Orange"
+            }
+        }
+        filterOnGroup: "selected"
+        groups: [
+            DelegateModelGroup {
+                name: "selected"
+                includeByDefault: true
+            }
+        ]
+        delegate: Text {
+            Component.onCompleted: {
+                if (index === 1) {
+                    DelegateModel.inSelected = false
+                }
+            }
+            text: index + ": " + model.name
+        }
+    }
+
+    // Needs an actual ListView in order for the DelegateModel to instantiate all items
+    ListView {
+        model: visualModel
+        anchors.fill: parent
+    }
+}
diff --git a/tests/auto/qml/qqmldelegatemodel/qqmldelegatemodel.pro b/tests/auto/qml/qqmldelegatemodel/qqmldelegatemodel.pro
index 7fdd3ab5f1..fbd72f6a44 100644
--- a/tests/auto/qml/qqmldelegatemodel/qqmldelegatemodel.pro
+++ b/tests/auto/qml/qqmldelegatemodel/qqmldelegatemodel.pro
@@ -2,7 +2,7 @@ CONFIG += testcase
 TARGET = tst_qqmldelegatemodel
 macos:CONFIG -= app_bundle
 
-QT += qml testlib core-private qml-private qmlmodels-private
+QT += qml quick testlib core-private qml-private qmlmodels-private
 
 SOURCES += tst_qqmldelegatemodel.cpp
 
diff --git a/tests/auto/qml/qqmldelegatemodel/tst_qqmldelegatemodel.cpp b/tests/auto/qml/qqmldelegatemodel/tst_qqmldelegatemodel.cpp
index 87f42c0c8a..71550a50f3 100644
--- a/tests/auto/qml/qqmldelegatemodel/tst_qqmldelegatemodel.cpp
+++ b/tests/auto/qml/qqmldelegatemodel/tst_qqmldelegatemodel.cpp
@@ -29,6 +29,8 @@
 #include <QtTest/qtest.h>
 #include <QtQml/qqmlcomponent.h>
 #include <QtQmlModels/private/qqmldelegatemodel_p.h>
+#include <QtQuick/qquickview.h>
+#include <QtQuick/qquickitem.h>
 
 #include "../../shared/util.h"
 
@@ -42,6 +44,7 @@ public:
 private slots:
     void valueWithoutCallingObjectFirst_data();
     void valueWithoutCallingObjectFirst();
+    void filterOnGroup_removeWhenCompleted();
 };
 
 class AbstractItemModel : public QAbstractItemModel
@@ -134,6 +137,18 @@ void tst_QQmlDelegateModel::valueWithoutCallingObjectFirst()
     QCOMPARE(model->variantValue(index, role), expectedValue);
 }
 
+void tst_QQmlDelegateModel::filterOnGroup_removeWhenCompleted()
+{
+    QQuickView view(testFileUrl("removeFromGroup.qml"));
+    QCOMPARE(view.status(), QQuickView::Ready);
+    view.show();
+    QQuickItem *root = view.rootObject();
+    QVERIFY(root);
+    QQmlDelegateModel *model = root->findChild<QQmlDelegateModel*>();
+    QVERIFY(model);
+    QTest::qWaitFor([=]{ return model->count() == 2; } );
+}
+
 QTEST_MAIN(tst_QQmlDelegateModel)
 
 #include "tst_qqmldelegatemodel.moc"
diff --git a/tests/auto/qml/qqmlecmascript/data/generatorCrashNewProperty.qml b/tests/auto/qml/qqmlecmascript/data/generatorCrashNewProperty.qml
new file mode 100644
index 0000000000..f775b4c613
--- /dev/null
+++ b/tests/auto/qml/qqmlecmascript/data/generatorCrashNewProperty.qml
@@ -0,0 +1,20 @@
+// QTBUG-91491
+import QtQml 2.15
+
+QtObject {
+   property int a: 42
+   property int b: 0
+   property int c: 0
+
+   function f(myfunc) {
+      let gen = myfunc();
+      gen["u"] = 0 // Adding members to the generator used to cause crashes when calling next()
+      c = gen.next().value
+   }
+
+   function refreshA() {
+      f(function*() { b = 12; return a });
+   }
+
+   Component.onCompleted: refreshA();
+}
diff --git a/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp b/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
index 9198d3bebf..3c3a2a7a99 100644
--- a/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
+++ b/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
@@ -239,6 +239,7 @@ private slots:
     void eval();
     void function();
     void topLevelGeneratorFunction();
+    void generatorCrashNewProperty();
     void qtbug_10696();
     void qtbug_11606();
     void qtbug_11600();
@@ -6489,6 +6490,21 @@ void tst_qqmlecmascript::topLevelGeneratorFunction()
     QCOMPARE(it.property("next").callWithInstance(it).property("value").toInt(), 1);
 }
 
+// QTBUG-91491
+void tst_qqmlecmascript::generatorCrashNewProperty()
+{
+    QQmlEngine engine;
+    QQmlComponent component(&engine, testFileUrl("generatorCrashNewProperty.qml"));
+
+    QScopedPointer<QObject> o(component.create());
+
+    QVERIFY2(o != nullptr, qPrintable(component.errorString()));
+
+    QCOMPARE(o->property("a").toInt(), 42);
+    QCOMPARE(o->property("b").toInt(), 12);
+    QCOMPARE(o->property("c").toInt(), 42);
+}
+
 // Test the "Qt.include" method
 void tst_qqmlecmascript::include()
 {
diff --git a/tests/auto/qml/qqmlincubator/tst_qqmlincubator.cpp b/tests/auto/qml/qqmlincubator/tst_qqmlincubator.cpp
index 549aae8c2b..25adf4f31d 100644
--- a/tests/auto/qml/qqmlincubator/tst_qqmlincubator.cpp
+++ b/tests/auto/qml/qqmlincubator/tst_qqmlincubator.cpp
@@ -71,6 +71,7 @@ private slots:
     void contextDelete();
     void garbageCollection();
     void requiredProperties();
+    void deleteInSetInitialState();
 
 private:
     QQmlIncubationController controller;
@@ -1213,6 +1214,38 @@ void tst_qqmlincubator::requiredProperties()
     }
 }
 
+class DeletingIncubator : public QQmlIncubator
+{
+
+
+    // QQmlIncubator interface
+protected:
+    void statusChanged(Status) override
+    {
+
+    }
+    void setInitialState(QObject *obj) override
+    {
+        delete obj;
+        clear();
+    }
+};
+
+void tst_qqmlincubator::deleteInSetInitialState()
+{
+    QQmlComponent component(&engine, testFileUrl("requiredProperty.qml"));
+    QVERIFY(component.isReady());
+    // forceCompletion immediately after creating an asynchronous object completes it
+    DeletingIncubator incubator;
+    incubator.setInitialProperties({{"requiredProperty", 42}});
+    QVERIFY(incubator.isNull());
+    component.create(incubator);
+    QVERIFY(incubator.isLoading());
+    incubator.forceCompletion(); // no crash
+    QVERIFY(incubator.isNull());
+    QCOMPARE(incubator.object(), nullptr); // object was deleted
+}
+
 QTEST_MAIN(tst_qqmlincubator)
 
 #include "tst_qqmlincubator.moc"
diff --git a/tests/auto/qml/qqmllanguage/data/Tab1.qml b/tests/auto/qml/qqmllanguage/data/Tab1.qml
new file mode 100644
index 0000000000..e1cd6d8c34
--- /dev/null
+++ b/tests/auto/qml/qqmllanguage/data/Tab1.qml
@@ -0,0 +1,9 @@
+import QtQuick 2.15
+
+Item {
+    component LeftTab: Item {
+    }
+
+    component RightTab: Item {
+    }
+}
diff --git a/tests/auto/qml/qqmllanguage/data/bareInline.qml b/tests/auto/qml/qqmllanguage/data/bareInline.qml
new file mode 100644
index 0000000000..cb79021250
--- /dev/null
+++ b/tests/auto/qml/qqmllanguage/data/bareInline.qml
@@ -0,0 +1,9 @@
+import QtQuick 2.9
+
+Item {
+    width: 800
+    height: 600
+    visible: true
+
+    Tab1.RightTab {}
+}
diff --git a/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp b/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
index e247a139ec..de8b2ef7eb 100644
--- a/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
+++ b/tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
@@ -48,6 +48,7 @@
 #include <private/qqmlscriptstring_p.h>
 #include <private/qqmlvmemetaobject_p.h>
 #include <private/qqmlcomponent_p.h>
+#include <private/qqmltype_p_p.h>
 
 #include "testtypes.h"
 #include "testhttpserver.h"
@@ -331,6 +332,7 @@ private slots:
     void arrayToContainer();
     void qualifiedScopeInCustomParser();
     void accessNullPointerPropertyCache();
+    void bareInlineComponent();
 
 private:
     QQmlEngine engine;
@@ -5813,6 +5815,32 @@ void tst_qqmllanguage::accessNullPointerPropertyCache()
     QVERIFY(!obj.isNull());
 }
 
+void tst_qqmllanguage::bareInlineComponent()
+{
+    QQmlEngine engine;
+
+    QQmlComponent c(&engine, testFileUrl("bareInline.qml"));
+    QVERIFY2(c.isReady(), qPrintable(c.errorString()));
+    QScopedPointer<QObject> o(c.create());
+    QVERIFY(!o.isNull());
+
+    QQmlMetaType::freeUnusedTypesAndCaches();
+
+    bool tab1Found = false;
+    const auto types = QQmlMetaType::qmlTypes();
+    for (const QQmlType &type : types) {
+        if (type.elementName() == QStringLiteral("Tab1")) {
+            QVERIFY(type.module().isEmpty());
+            tab1Found = true;
+            const auto ics = type.priv()->objectIdToICType;
+            QVERIFY(ics.size() > 0);
+            for (const QQmlType &ic : ics)
+                QVERIFY(ic.containingType() == type);
+        }
+    }
+    QVERIFY(tab1Found);
+}
+
 QTEST_MAIN(tst_qqmllanguage)
 
 #include "tst_qqmllanguage.moc"
diff --git a/tests/auto/qml/qqmlproperty/tst_qqmlproperty.cpp b/tests/auto/qml/qqmlproperty/tst_qqmlproperty.cpp
index 8a96fc52c5..5363cc8fcb 100644
--- a/tests/auto/qml/qqmlproperty/tst_qqmlproperty.cpp
+++ b/tests/auto/qml/qqmlproperty/tst_qqmlproperty.cpp
@@ -164,6 +164,8 @@ private slots:
     void nestedQQmlPropertyMap();
 
     void underscorePropertyChangeHandler();
+
+    void signalExpressionWithoutObject();
 private:
     QQmlEngine engine;
 };
@@ -2210,6 +2212,14 @@ void tst_qqmlproperty::underscorePropertyChangeHandler()
     QVERIFY(changeHandler.isSignalProperty());
 }
 
+void tst_qqmlproperty::signalExpressionWithoutObject()
+{
+    QQmlProperty invalid;
+    QQmlPropertyPrivate::setSignalExpression(invalid, nullptr);
+    QQmlBoundSignalExpression *expr = QQmlPropertyPrivate::signalExpression(invalid);
+    QVERIFY(!expr);
+}
+
 QTEST_MAIN(tst_qqmlproperty)
 
 #include "tst_qqmlproperty.moc"
diff --git a/tests/auto/quick/qquickmousearea/data/containsMouse.qml b/tests/auto/quick/qquickmousearea/data/containsMouse.qml
new file mode 100644
index 0000000000..c4f1299e49
--- /dev/null
+++ b/tests/auto/quick/qquickmousearea/data/containsMouse.qml
@@ -0,0 +1,14 @@
+import QtQuick 2.15
+
+Rectangle {
+    width: 200
+    height: 200
+    visible: true
+    MouseArea {
+        id: mouseArea
+        objectName: "mouseArea"
+        anchors.fill: parent
+        hoverEnabled: true
+        visible: false
+    }
+}
diff --git a/tests/auto/quick/qquickmousearea/tst_qquickmousearea.cpp b/tests/auto/quick/qquickmousearea/tst_qquickmousearea.cpp
index 91fcae40af..1c99357ab7 100644
--- a/tests/auto/quick/qquickmousearea/tst_qquickmousearea.cpp
+++ b/tests/auto/quick/qquickmousearea/tst_qquickmousearea.cpp
@@ -160,6 +160,7 @@ private slots:
     void mask();
     void nestedEventDelivery();
     void settingHiddenInPressUngrabs();
+    void containsMouseAndVisibility();
 
 private:
     int startDragDistance() const {
@@ -2450,6 +2451,55 @@ void tst_QQuickMouseArea::settingHiddenInPressUngrabs()
     QVERIFY(!mouseArea->pressed());
 }
 
+// QTBUG-87197
+void tst_QQuickMouseArea::containsMouseAndVisibility()
+{
+    QQuickView window;
+    QByteArray errorMessage;
+    QVERIFY2(QQuickTest::initView(window, testFileUrl("containsMouse.qml"), true, &errorMessage), errorMessage.constData());
+    window.show();
+    window.requestActivate();
+    QVERIFY(QTest::qWaitForWindowExposed(&window));
+
+    QQuickMouseArea *mouseArea = window.rootObject()->findChild<QQuickMouseArea*>("mouseArea");
+    QVERIFY(mouseArea != nullptr);
+    QVERIFY(!mouseArea->isVisible());
+
+    QTest::mouseMove(&window, QPoint(10, 10));
+    QTRY_VERIFY(!mouseArea->hovered());
+
+    mouseArea->setVisible(true);
+    QVERIFY(mouseArea->isVisible());
+    QTRY_VERIFY(mouseArea->hovered());
+
+    /* we (ab-)use QPointF() as the 'reset' value in QQuickWindow's leave-event handling,
+       but can't verify that this leaves an invalid interpretation of states for position
+       QPoint(0, 0) as QTest::mouseMove interprets a null-position as "center of the window".
+
+       So instead, verify the current (unexpectedly expected) behavior as far as testing is
+       concern.
+    */
+    QTest::mouseMove(&window, QPoint(0, 0));
+    QTRY_VERIFY(mouseArea->hovered());
+    QTRY_VERIFY(mouseArea->isUnderMouse());
+
+    // move to the edge (can't move outside)
+    QTest::mouseMove(&window, QPoint(window.width() - 1, window.height() / 2));
+    // then pretend we left
+    QEvent event(QEvent::Leave);
+    QGuiApplication::sendEvent(&window, &event);
+    QVERIFY(!mouseArea->hovered());
+
+    // toggle mouse area visibility - the hover state should not change
+    mouseArea->setVisible(false);
+    QVERIFY(!mouseArea->isVisible());
+    QVERIFY(!mouseArea->hovered());
+
+    mouseArea->setVisible(true);
+    QVERIFY(mouseArea->isVisible());
+    QVERIFY(!mouseArea->hovered());
+}
+
 QTEST_MAIN(tst_QQuickMouseArea)
 
 #include "tst_qquickmousearea.moc"
diff --git a/tests/auto/quick/qquicktableview/data/sizefromdelegate.qml b/tests/auto/quick/qquicktableview/data/sizefromdelegate.qml
new file mode 100644
index 0000000000..b4a04c89cb
--- /dev/null
+++ b/tests/auto/quick/qquicktableview/data/sizefromdelegate.qml
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQuick module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.12
+import QtQuick.Window 2.3
+
+Item {
+    width: 640
+    height: 450
+
+    property alias tableView: tableView
+
+    TableView {
+        id: tableView
+        width: 600
+        height: 400
+        anchors.margins: 1
+        delegate: tableViewDelegate
+        columnSpacing: 1
+        rowSpacing: 1
+    }
+
+    Component {
+        id: tableViewDelegate
+        Rectangle {
+            color: "lightgray"
+            implicitWidth: text.width
+            implicitHeight: text.height
+
+            Text {
+                id: text
+                anchors.centerIn: parent
+                text: modelData
+            }
+        }
+    }
+
+}
diff --git a/tests/auto/quick/qquicktableview/tst_qquicktableview.cpp b/tests/auto/quick/qquicktableview/tst_qquicktableview.cpp
index d489a873e4..d14c37d8e3 100644
--- a/tests/auto/quick/qquicktableview/tst_qquicktableview.cpp
+++ b/tests/auto/quick/qquicktableview/tst_qquicktableview.cpp
@@ -121,7 +121,9 @@ private slots:
     void checkForceLayoutFunction();
     void checkForceLayoutEndUpDoingALayout();
     void checkForceLayoutDuringModelChange();
+    void checkForceLayoutWhenAllItemsAreHidden();
     void checkContentWidthAndHeight();
+    void checkContentWidthAndHeightForSmallTables();
     void checkPageFlicking();
     void checkExplicitContentWidthAndHeight();
     void checkExtents_origin();
@@ -625,6 +627,38 @@ void tst_QQuickTableView::checkForceLayoutDuringModelChange()
     QCOMPARE(tableView->rows(), initialRowCount + 1);
 }
 
+void tst_QQuickTableView::checkForceLayoutWhenAllItemsAreHidden()
+{
+    // Check that you can have a TableView where all columns are
+    // initially hidden, and then show some columns and call
+    // forceLayout(). This should make the columns become visible.
+    LOAD_TABLEVIEW("forcelayout.qml");
+
+    // Tell all columns to be hidden
+    const char *propertyName = "columnWidths";
+    view->rootObject()->setProperty(propertyName, 0);
+
+    const int rows = 3;
+    const int columns = 3;
+    auto model = TestModelAsVariant(rows, columns);
+    tableView->setModel(model);
+
+    WAIT_UNTIL_POLISHED;
+
+    // Check that the we have no items loaded
+    QCOMPARE(tableViewPrivate->loadedColumns.count(), 0);
+    QCOMPARE(tableViewPrivate->loadedRows.count(), 0);
+    QCOMPARE(tableViewPrivate->loadedItems.count(), 0);
+
+    // Tell all columns to be visible
+    view->rootObject()->setProperty(propertyName, 10);
+    tableView->forceLayout();
+
+    QCOMPARE(tableViewPrivate->loadedRows.count(), rows);
+    QCOMPARE(tableViewPrivate->loadedColumns.count(), columns);
+    QCOMPARE(tableViewPrivate->loadedItems.count(), rows * columns);
+}
+
 void tst_QQuickTableView::checkContentWidthAndHeight()
 {
     // Check that contentWidth/Height reports the correct size of the
@@ -673,6 +707,30 @@ void tst_QQuickTableView::checkContentWidthAndHeight()
     QCOMPARE(tableView->contentHeight(), expectedSizeInit);
 }
 
+void tst_QQuickTableView::checkContentWidthAndHeightForSmallTables()
+{
+    // For tables where all the columns in the model are loaded, we know
+    // the exact table width, and can therefore update the content width
+    // if e.g new rows are added or removed. The same is true for rows.
+    // This test will check that we do so.
+    LOAD_TABLEVIEW("sizefromdelegate.qml");
+
+    TestModel model(3, 3);
+    tableView->setModel(QVariant::fromValue(&model));
+    WAIT_UNTIL_POLISHED;
+
+    const qreal initialContentWidth = tableView->contentWidth();
+    const qreal initialContentHeight = tableView->contentHeight();
+    const QString longText = QStringLiteral("Adding a row with a very long text");
+    model.insertRow(0);
+    model.setModelData(QPoint(0, 0), QSize(1, 1), longText);
+
+    WAIT_UNTIL_POLISHED;
+
+    QVERIFY(tableView->contentWidth() > initialContentWidth);
+    QVERIFY(tableView->contentHeight() > initialContentHeight);
+}
+
 void tst_QQuickTableView::checkPageFlicking()
 {
     // Check that we rebuild the table instead of refilling edges, if the viewport moves
diff --git a/tests/auto/quick/qquicktextinput/data/checkCursorDelegateWhenPaddingChanged.qml b/tests/auto/quick/qquicktextinput/data/checkCursorDelegateWhenPaddingChanged.qml
new file mode 100644
index 0000000000..e6f07b4687
--- /dev/null
+++ b/tests/auto/quick/qquicktextinput/data/checkCursorDelegateWhenPaddingChanged.qml
@@ -0,0 +1,16 @@
+import QtQuick 2.12
+
+Rectangle {
+    width: 200
+    height: 200
+    TextInput {
+        objectName: "textInput"
+        leftPadding: 10
+        focus: true
+        cursorDelegate: Rectangle {
+            objectName: "cursorDelegate"
+            width: 5
+            color: "red"
+        }
+    }
+}
diff --git a/tests/auto/quick/qquicktextinput/tst_qquicktextinput.cpp b/tests/auto/quick/qquicktextinput/tst_qquicktextinput.cpp
index 2e64c80b85..ac502bcb28 100644
--- a/tests/auto/quick/qquicktextinput/tst_qquicktextinput.cpp
+++ b/tests/auto/quick/qquicktextinput/tst_qquicktextinput.cpp
@@ -236,6 +236,7 @@ private slots:
     void QTBUG_51115_readOnlyResetsSelection();
     void QTBUG_77814_InsertRemoveNoSelection();
 
+    void checkCursorDelegateWhenPaddingChanged();
 private:
     void simulateKey(QWindow *, int key);
 
@@ -7054,6 +7055,35 @@ void tst_qquicktextinput::QTBUG_77814_InsertRemoveNoSelection()
     QCOMPARE(textInput->selectedText(), QString());
 }
 
+void tst_qquicktextinput::checkCursorDelegateWhenPaddingChanged()
+{
+    QQuickView view;
+    view.setSource(testFileUrl("checkCursorDelegateWhenPaddingChanged.qml"));
+    view.show();
+    QVERIFY(QTest::qWaitForWindowExposed(&view));
+
+    QQuickTextInput *textInput = view.rootObject()->findChild<QQuickTextInput *>("textInput");
+    QVERIFY(textInput);
+
+    QQuickItem *cursorDelegate = textInput->findChild<QQuickItem *>("cursorDelegate");
+    QVERIFY(cursorDelegate);
+
+    QCOMPARE(cursorDelegate->x(), textInput->leftPadding());
+    QCOMPARE(cursorDelegate->y(), textInput->topPadding());
+
+    textInput->setPadding(5);
+    QCOMPARE(cursorDelegate->x(), textInput->leftPadding());
+    QCOMPARE(cursorDelegate->y(), textInput->topPadding());
+
+    textInput->setTopPadding(10);
+    QCOMPARE(cursorDelegate->x(), textInput->leftPadding());
+    QCOMPARE(cursorDelegate->y(), textInput->topPadding());
+
+    textInput->setLeftPadding(10);
+    QCOMPARE(cursorDelegate->x(), textInput->leftPadding());
+    QCOMPARE(cursorDelegate->y(), textInput->topPadding());
+}
+
 QTEST_MAIN(tst_qquicktextinput)
 
 #include "tst_qquicktextinput.moc"
diff --git a/tests/auto/quicktest/quicktest.pro b/tests/auto/quicktest/quicktest.pro
index 6d09f76c1d..2116e4d3ac 100644
--- a/tests/auto/quicktest/quicktest.pro
+++ b/tests/auto/quicktest/quicktest.pro
@@ -3,4 +3,5 @@ SUBDIRS = \
     polish \
     signalspy \
     quicktestmainwithsetup \
-    testfiltering
+    testfiltering \
+    testwithcomponents
diff --git a/tests/auto/quicktest/testwithcomponents/data/Sample.qml b/tests/auto/quicktest/testwithcomponents/data/Sample.qml
new file mode 100644
index 0000000000..78e3008b01
--- /dev/null
+++ b/tests/auto/quicktest/testwithcomponents/data/Sample.qml
@@ -0,0 +1,8 @@
+import QtQuick 2.15
+
+Item {
+    id: root
+
+    component InlineComponent: Rectangle {}
+    InlineComponent{}
+}
diff --git a/tests/auto/quicktest/testwithcomponents/data/tst_setup.qml b/tests/auto/quicktest/testwithcomponents/data/tst_setup.qml
new file mode 100644
index 0000000000..533027147e
--- /dev/null
+++ b/tests/auto/quicktest/testwithcomponents/data/tst_setup.qml
@@ -0,0 +1,53 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.0
+import QtTest 1.2
+
+
+Item {
+
+    Component {
+        id: mock
+        Sample {
+        }
+    }
+
+    component Mock : Sample {}
+
+    TestCase {
+        id: root
+        name: "ComponentTest"
+
+        function test_create()
+        {
+            let dialog = createTemporaryObject(mock, root);
+            verify(dialog);
+        }
+    }
+}
diff --git a/tests/auto/quicktest/testwithcomponents/testwithcomponents.pro b/tests/auto/quicktest/testwithcomponents/testwithcomponents.pro
new file mode 100644
index 0000000000..8f64dc2ebb
--- /dev/null
+++ b/tests/auto/quicktest/testwithcomponents/testwithcomponents.pro
@@ -0,0 +1,10 @@
+CONFIG += qmltestcase
+macos:CONFIG -= app_bundle
+TARGET = tst_quicktestwithcomponents
+
+QT += testlib quick
+
+SOURCES += tst_quicktestwithcomponents.cpp
+
+TESTDATA += \
+    $$PWD/data/*.qml
diff --git a/tests/auto/quicktest/testwithcomponents/tst_quicktestwithcomponents.cpp b/tests/auto/quicktest/testwithcomponents/tst_quicktestwithcomponents.cpp
new file mode 100644
index 0000000000..9692347cb8
--- /dev/null
+++ b/tests/auto/quicktest/testwithcomponents/tst_quicktestwithcomponents.cpp
@@ -0,0 +1,32 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/qtest.h>
+#include <QtQuickTest/quicktest.h>
+
+QUICK_TEST_MAIN(data)