implementation with basic functionality

playground/drawer/main.cpp

@@ -24,33 +24,34 @@ namespace
             : QskDrawer( parent )
         {
 #if 1
-            setAnimationHint( Panel | QskAspect::Position, 1000 );
+            setAnimationHint( faderAspect(), 1000 );
 #endif
 
             setEdge( edge );
             setOverlay( true );
 
             auto content = new QskControl( this );
+            content->setObjectName( "Content" );
 
             switch( edge )
             {
                 case Qt::LeftEdge:
                     content->setBackgroundColor( QskRgb::Tomato );
-                    setFixedWidth( 100 );
+                    content->setFixedWidth( 100 );
                     break;
 
                 case Qt::RightEdge:
-                    setFixedWidth( 200 );
+                    content->setFixedWidth( 200 );
                     content->setBackgroundColor( QskRgb::Orchid );
                     break;
 
                 case Qt::TopEdge:
-                    setFixedHeight( 100 );
+                    content->setFixedHeight( 100 );
-                    content->setBackgroundColor( QskRgb::Wheat );
+                    content->setBackgroundColor( QskRgb::Chartreuse );
                     break;
 
                 case Qt::BottomEdge:
-                    setFixedHeight( 200 );
+                    content->setFixedHeight( 200 );
                     content->setBackgroundColor( QskRgb::Wheat );
                     break;
             }
@@ -65,16 +66,26 @@ namespace
         {
             setBackgroundColor( QskRgb::LightSteelBlue );
 
-            setMargins( 50 );
+            setMargins( 10 );
             setAutoLayoutChildren( true );
 
-            (void) new QskPushButton( this );
-
             for ( int i = 0; i < 4; i++ )
             {
                 const auto edge = static_cast< Qt::Edge >( 1 << i );
                 m_drawers[i] = new Drawer( edge, this );
+
+                auto dragMargin = 30; // the default setting is pretty small
+                if ( edge == Qt::TopEdge )
+                {
+                    // to check if dragging works above the button
+                    dragMargin = 120;
                 }
+
+                m_drawers[i]->setDragMargin( dragMargin );
+            }
+
+            auto button = new QskPushButton( "Push Me", this );
+            button->setPreferredHeight( 100 );
         }
 
       private:
@@ -87,7 +98,6 @@ namespace
         MainBox( QQuickItem* parent = nullptr )
             : QskControl( parent )
         {
-            setBackgroundColor( QskRgb::LemonChiffon );
             setMargins( 40 );
             setAutoLayoutChildren( true );
 

skins/fluent2/QskFluent2Skin.cpp

@@ -606,21 +606,15 @@ void Editor::setupDialogButtonBoxColors(
 void Editor::setupDrawerMetrics()
 {
     using Q = QskDrawer;
-
+    using A = QskAspect;
-    setPadding( Q::Panel, 5 );
-    setHint( Q::Overlay | QskAspect::Style, false );
 
 #if 1
-    setAnimation( Q::Panel | QskAspect::Position, 200 );
+    setAnimation( Q::Panel | A::Metric | A::Position, 200 );
 #endif
 }
 
-void Editor::setupDrawerColors(
+void Editor::setupDrawerColors( QskAspect::Section, const QskFluent2Theme& )
-    QskAspect::Section section, const QskFluent2Theme& theme )
 {
-    using Q = QskDrawer;
-
-    setGradient( Q::Panel | section, theme.palette.background.solid.base );
 }
 
 void Editor::setupFocusIndicatorMetrics()
@@ -735,6 +729,7 @@ void Editor::setupListViewColors(
 void Editor::setupMenuMetrics()
 {
     using Q = QskMenu;
+    using A = QskAspect;
 
     setPadding( Q::Panel, { 4, 6, 4, 6 } );
     setBoxBorderMetrics( Q::Panel, 1 );
@@ -748,6 +743,14 @@ void Editor::setupMenuMetrics()
 
     setStrutSize( Q::Icon, 12, 12 );
     setPadding( Q::Icon, { 8, 8, 0, 8 } );
+
+#if 1
+    setPosition( Q::Panel, 0 );
+    setPosition( Q::Panel | QskPopup::Closed, 1 );
+
+    // copied from Mat3 - what are the correct values for Fluent2 ???
+    setAnimation( Q::Panel | A::Metric, 150 );
+#endif
 }
 
 void Editor::setupMenuColors(

skins/material3/QskMaterial3Skin.cpp

@@ -379,7 +379,7 @@ void Editor::setupMenu()
     setFontRole( Q::Text, QskMaterial3Skin::M3BodyMedium );
 
     setPosition( Q::Panel, 0 );
-    setPosition( Q::Panel | QskPopup::Closed, 1_dp );
+    setPosition( Q::Panel | QskPopup::Closed, 1 );
 
     setAnimation( Q::Panel | A::Metric, 150 );
     setAnimation( Q::Cursor | A::Position | A::Metric, 75, QEasingCurve::OutCubic );
@@ -809,12 +809,9 @@ void Editor::setupDialogButtonBox()
 void Editor::setupDrawer()
 {
     using Q = QskDrawer;
+    using A = QskAspect;
 
-    setPadding( Q::Panel, 5_dp );
+    setAnimation( Q::Panel | A::Metric | A::Position, qskDuration );
-    setGradient( Q::Panel, m_pal.background );
-    setHint( Q::Overlay | QskAspect::Style, false );
-
-    setAnimation( Q::Panel | QskAspect::Position, qskDuration );
 }
 
 void Editor::setupSlider()

skins/squiek/QskSquiekSkin.cpp

@@ -759,13 +759,12 @@ void Editor::setupDialogButtonBox()
     setBoxShape( Q::Panel, 2 );
 }
 
-void Editor::setupDrawer() {
+void Editor::setupDrawer()
+{
+    using A = QskAspect;
     using Q = QskDrawer;
 
-    setPadding( Q::Panel, 5 );
+    setAnimation( Q::Panel | A::Metric | A::Position, qskDuration );
-    setGradient( Q::Panel, m_pal.darker125 );
-    setAnimation( Q::Panel | QskAspect::Position, qskDuration );
-    setHint( Q::Overlay | QskAspect::Style, false );
 }
 
 void Editor::setupTabButton()

src/CMakeLists.txt

@@ -115,6 +115,7 @@ list(APPEND HEADERS
     nodes/QskRichTextRenderer.h
     nodes/QskScaleRenderer.h
     nodes/QskSGNode.h
+    nodes/QskSlideInNode.h
     nodes/QskStrokeNode.h
     nodes/QskStippledLineRenderer.h
     nodes/QskShapeNode.h
@@ -146,6 +147,7 @@ list(APPEND SOURCES
     nodes/QskRichTextRenderer.cpp
     nodes/QskScaleRenderer.cpp
     nodes/QskSGNode.cpp
+    nodes/QskSlideInNode.cpp
     nodes/QskStrokeNode.cpp
     nodes/QskStippledLineRenderer.cpp
     nodes/QskShapeNode.cpp

src/controls/QskDrawer.cpp

@@ -12,48 +12,88 @@
 #include "QskPanGestureRecognizer.h"
 #include "QskGesture.h"
 
+#include <qguiapplication.h>
+#include <qstylehints.h>
+
 QSK_QT_PRIVATE_BEGIN
 #include <private/qquickitem_p.h>
 #include <private/qquickitemchangelistener_p.h>
 QSK_QT_PRIVATE_END
 
-// we need a skinlet to draw the panel TODO ...
+/*
+    Only used for the sliding in animation. Do we want to
+    introduce a specific panel as background ???
+ */
 QSK_SUBCONTROL( QskDrawer, Panel )
 
-static QRectF qskDrawerRect( const QRectF& rect,
+static void qskCatchMouseEvents( QQuickItem* item )
-    Qt::Edge edge, qreal pos, const QSizeF& size )
 {
-    QRectF r( 0.0, 0.0, size.width(), size.height() );
+#if 1
+    // manipulating other items - do we really want to do this ?
+    item->setAcceptedMouseButtons( Qt::LeftButton );
+    item->setFiltersChildMouseEvents( true );
+#endif
+}
 
-    const auto progress = pos = 1.0 - pos;
+static bool qskCheckDirection( Qt::Edge edge, const QskPanGesture* gesture )
+{
+    const auto degrees = gesture->angle();
 
     switch( edge )
     {
         case Qt::LeftEdge:
+            return ( degrees < 90.0 ) || ( degrees ) > 270.0;
+
+        case Qt::RightEdge:
+            return ( degrees > 90.0 ) && ( degrees < 270.0 );
+
+        case Qt::TopEdge:
+            return degrees > 180.0;
+
+        case Qt::BottomEdge:
+            return degrees < 180.0;
+    }
+
+    return false;
+}
+
+static void qskLayoutDrawer( const QRectF& rect, QskDrawer* drawer )
+{
+    const auto size = qskSizeConstraint( drawer, Qt::PreferredSize );
+
+    QRectF r( 0.0, 0.0, size.width(), size.height() );
+
+    switch( drawer->edge() )
     {
-            r.moveRight( rect.left() + progress * size.width() );
+        case Qt::LeftEdge:
+        {
+            r.setHeight( rect.height() );
+            r.moveRight( rect.left() + size.width() );
             break;
         }
         case Qt::RightEdge:
         {
-            r.moveLeft( rect.right() - progress * size.width() );
+            r.setHeight( rect.height() );
+            r.moveLeft( rect.right() - size.width() );
             break;
         }
 
         case Qt::TopEdge:
         {
-            r.moveBottom( rect.top() + progress * size.height() );
+            r.setWidth( rect.width() );
+            r.moveBottom( rect.top() + size.height() );
             break;
         }
 
         case Qt::BottomEdge:
         {
-            r.moveTop( rect.bottom() - progress * size.height() );
+            r.setWidth( rect.width() );
+            r.moveTop( rect.bottom() - size.height() );
             break;
         }
     }
 
-    return r;
+    drawer->setGeometry( r );
 }
 
 namespace
@@ -61,10 +101,11 @@ namespace
     class GeometryListener final : public QQuickItemChangeListener
     {
       public:
-        GeometryListener( QskDrawer* drawer )
+        GeometryListener( QQuickItem* item, QQuickItem* adjustedItem )
-            : m_drawer( drawer )
+            : m_item( item )
-            , m_parent( drawer->parentItem() )
+            , m_adjustedItem( adjustedItem )
         {
+            adjust();
             setEnabled( true );
         }
 
@@ -77,28 +118,40 @@ namespace
         void itemGeometryChanged( QQuickItem*,
             QQuickGeometryChange, const QRectF& ) override
         {
-            m_drawer->polish();
+            adjust();
         }
 
       private:
-        void setEnabled( bool on )
+        void adjust()
         {
-            if ( m_parent )
+#if 0
+            const auto pos = m_adjustedItem->mapFromItem( m_item, QPointF() );
+            qskSetItemGeometry( m_adjustedItem,
+                pos.x(), pos.y(), m_item->width(), m_item->height() );
+#else
+            qskLayoutDrawer( QRectF( QPointF(), m_item->size() ),
+                qobject_cast< QskDrawer* >( m_adjustedItem ) );
+#endif
+        }
+
+        void setEnabled( bool on )
         {
             const auto changeTypes = QQuickItemPrivate::Geometry;
 
-                auto d = QQuickItemPrivate::get( m_parent );
+            auto d = QQuickItemPrivate::get( m_item );
             if ( on )
                 d->addItemChangeListener( this, changeTypes );
             else
                 d->removeItemChangeListener( this, changeTypes );
         }
-        }
 
-        QskDrawer* m_drawer = nullptr;
+        QQuickItem* m_item;
-        QQuickItem* m_parent = nullptr;
+        QQuickItem* m_adjustedItem;
     };
+}
 
+namespace
+{
     class GestureRecognizer : public QskPanGestureRecognizer
     {
         using Inherited = QskPanGestureRecognizer;
@@ -112,33 +165,36 @@ namespace
         }
 
       protected:
-        QRectF gestureRect() const override
+        bool isAcceptedPos( const QPointF& pos ) const override
         {
-            auto drawer = qobject_cast< QskDrawer* >( parent() );
+            auto drawer = qobject_cast< const QskDrawer* >( targetItem() );
+
+            const auto dragMargin = drawer->dragMargin();
+            if ( dragMargin <= 0.0 )
+                return false;
 
-            const auto dist = 50;
             auto rect = qskItemRect( watchedItem() );
 
             switch( drawer->edge() )
             {
                 case Qt::LeftEdge:
-                    rect.setRight( rect.left() + dist );
+                    rect.setRight( rect.left() + dragMargin );
                     break;
 
                 case Qt::RightEdge:
-                    rect.setLeft( rect.right() - dist );
+                    rect.setLeft( rect.right() - dragMargin );
                     break;
 
                 case Qt::TopEdge:
-                    rect.setBottom( rect.top() + dist );
+                    rect.setBottom( rect.top() + dragMargin );
                     break;
 
                 case Qt::BottomEdge:
-                    rect.setTop( rect.bottom() - dist );
+                    rect.setTop( rect.bottom() - dragMargin );
                     break;
             }
 
-            return rect;
+            return rect.contains( pos );
         }
     };
 }
@@ -147,23 +203,26 @@ class QskDrawer::PrivateData
 {
   public:
     Qt::Edge edge = Qt::LeftEdge;
+    GestureRecognizer* gestureRecognizer = nullptr;
     GeometryListener* listener = nullptr;
+
+    // a skin hint ???
+    qreal dragMargin = QGuiApplication::styleHints()->startDragDistance();
 };
 
 QskDrawer::QskDrawer( QQuickItem* parentItem )
     : Inherited ( parentItem )
     , m_data( new PrivateData )
 {
+#if 1
     setZ( 1 );
+#endif
 
-    setAutoLayoutChildren( true );
+    setPolishOnResize( true );
 
     setPopupFlag( PopupFlag::CloseOnPressOutside, true );
     setFaderAspect( Panel | QskAspect::Position | QskAspect::Metric );
 
-    connect( this, &QskDrawer::closed,
-        this, [this]() { startFading( false ); } );
-
     /*
         The drawer wants to be on top of the parent - not being
         layouted into its layoutRect(). So we opt out and do
@@ -172,17 +231,22 @@ QskDrawer::QskDrawer( QQuickItem* parentItem )
     setPlacementPolicy( QskPlacementPolicy::Ignore );
     if ( parentItem )
     {
-        /*
+        m_data->listener = new GeometryListener( parentItem, this );
-            QskPopup has an internal QskInputGrabber, that does something
+        qskCatchMouseEvents( parentItem );
-            very similar. Maybe we can make use of it ... TODO
-         */
-        m_data->listener = new GeometryListener( this );
     }
 
-    (void) new GestureRecognizer( this );
+    m_data->gestureRecognizer = new GestureRecognizer( this );
-#if 1
+
-    parentItem->setAcceptedMouseButtons( Qt::LeftButton );
+
-#endif
+    connect( this, &QskPopup::openChanged, this, &QskDrawer::setFading );
+
+    /*
+        When the content of the parentItem does not fit we will have
+        a difference between fading and normal state. To overcome this problem
+        we need to expand the rectangle of the QQuickDefaultClipNode manually to
+        the window borders: TODO ...
+     */
+    connect( this, &QskPopup::fadingChanged, parentItem, &QQuickItem::setClip );
 }
 
 QskDrawer::~QskDrawer()
@@ -205,13 +269,36 @@ void QskDrawer::setEdge( Qt::Edge edge )
     edgeChanged( edge );
 }
 
+void QskDrawer::setDragMargin( qreal margin )
+{
+    margin = std::max( margin, 0.0 );
+
+    if ( margin != m_data->dragMargin )
+    {
+        m_data->dragMargin = margin;
+        Q_EMIT dragMarginChanged( margin );
+    }
+}
+
+qreal QskDrawer::dragMargin() const
+{
+    return m_data->dragMargin;
+}
+
 void QskDrawer::gestureEvent( QskGestureEvent* event )
 {
     if ( event->gesture()->type() == QskGesture::Pan )
     {
+        /*
+            For the moment we treat the gesture like a swipe gesture
+            without dragging the drawer when moving the mouse. TODO ...
+         */
         const auto gesture = static_cast< const QskPanGesture* >( event->gesture().get() );
         if ( gesture->state() == QskGesture::Finished )
+        {
+            if ( qskCheckDirection( m_data->edge, gesture ) )
                 open();
+        }
 
         return;
     }
@@ -219,30 +306,89 @@ void QskDrawer::gestureEvent( QskGestureEvent* event )
     Inherited::gestureEvent( event );
 }
 
-QRectF QskDrawer::layoutRectForSize( const QSizeF& size ) const
+QSizeF QskDrawer::layoutSizeHint(
+    Qt::SizeHint which, const QSizeF& constraint ) const
 {
-    return Inherited::layoutRectForSize( size );
+    if ( which == Qt::MaximumSize )
+        return QSizeF();
+
+    qreal w = -1.0;
+    qreal h = -1.0;
+
+    const auto children = childItems();
+
+    for ( const auto child : children )
+    {
+        if ( !qskIsVisibleToLayout( child ) )
+            continue;
+
+        const auto policy = qskSizePolicy( child );
+
+        if ( constraint.width() >= 0.0 && policy.isConstrained( Qt::Vertical ) )
+        {
+            const auto hint = qskSizeConstraint( child, which, constraint );
+            h = qMax( h, hint.height() );
+        }
+        else if ( constraint.height() >= 0.0 && policy.isConstrained( Qt::Horizontal ) )
+        {
+            const auto hint = qskSizeConstraint( child, which, constraint );
+            w = qMax( w, hint.width() );
+        }
+        else
+        {
+            const auto hint = qskSizeConstraint( child, which );
+
+            w = qMax( w, hint.width() );
+            h = qMax( h, hint.height() );
+        }
+    }
+
+    return QSizeF( w, h );
 }
 
 void QskDrawer::updateLayout()
 {
-    if ( !( isOpen() || isFading() ) )
+    if ( !( isOpen() || isFading() ) || size().isEmpty() )
         return;
 
-    const auto targetRect = qskItemRect( parentItem() );
+    auto dx = 0.0;
-    const auto size = qskConstrainedItemSize( this, targetRect.size() );
+    auto dy = 0.0;
 
-    const auto rect = qskDrawerRect( targetRect,
+    if ( isFading() )
-        m_data->edge, metric( faderAspect() ), size );
+    {
+        const auto f = metric( faderAspect() );
 
-    qskSetItemGeometry( this, rect );
+        switch( m_data->edge )
-    Inherited::updateLayout();
+        {
-}
+            case Qt::LeftEdge:
+                dx = -f * width();
+                break;
 
-void QskDrawer::aboutToShow()
+            case Qt::RightEdge:
-{
+                dx = f * width();
-    startFading( true );
+                break;
-    Inherited::aboutToShow();
+
+            case Qt::TopEdge:
+                dy = -f * height();
+                break;
+
+            case Qt::BottomEdge:
+                dy = f * height();
+                break;
+        }
+    }
+    
+    const QRectF layoutRect( dx, dy, width(), height() );
+
+    const auto children = childItems();
+    for ( auto child : children )
+    {
+        if ( qskIsAdjustableByLayout( child ) )
+        {
+            const auto r = qskConstrainedItemRect( child, layoutRect );
+            qskSetItemGeometry( child, r );
+        }
+    }
 }
 
 void QskDrawer::itemChange( QQuickItem::ItemChange change,
@@ -250,23 +396,39 @@ void QskDrawer::itemChange( QQuickItem::ItemChange change,
 {
     Inherited::itemChange( change, value );
 
-    if ( change == QQuickItem::ItemParentHasChanged )
+    switch( static_cast< int >( change ) )
+    {
+        case QQuickItem::ItemParentHasChanged:
+        {
+            if ( parentItem() )
+                qskCatchMouseEvents( parentItem() );
+
+            Q_FALLTHROUGH();
+        }
+        case QQuickItem::ItemVisibleHasChanged:
         {
             delete m_data->listener;
             m_data->listener = nullptr;
 
-        if ( parentItem() )
+            if ( parentItem() && isVisible() )
-            m_data->listener = new GeometryListener( this );
+                m_data->listener = new GeometryListener( parentItem(), this );
+
+            break;
+        }
     }
 }
 
-void QskDrawer::startFading( bool open )
+void QskDrawer::setFading( bool on )
 {
-    const auto from = open ? 1.0 : 0.0;
+    const qreal from = on ? 1.0 : 0.0;
-    const auto to = open ? 0.0 : 1.0;
+    const qreal to = on ? 0.0 : 1.0;
 
-    const auto hint = animationHint( Panel | QskAspect::Position );
+    const auto aspect = faderAspect();
-    startTransition( faderAspect(), hint, from, to );
+
+    auto hint = animationHint( aspect );
+    hint.updateFlags = QskAnimationHint::UpdatePolish;
+
+    startTransition( aspect, hint, from, to );
 }
 
 #include "moc_QskDrawer.cpp"

src/controls/QskDrawer.h

@@ -17,6 +17,9 @@ class QSK_EXPORT QskDrawer : public QskPopup
 
     Q_PROPERTY( Qt::Edge edge READ edge WRITE setEdge NOTIFY edgeChanged )
 
+    Q_PROPERTY( qreal dragMargin READ dragMargin
+        WRITE setDragMargin NOTIFY dragMarginChanged )
+
   public:
     QSK_SUBCONTROLS( Panel )
 
@@ -26,20 +29,23 @@ class QSK_EXPORT QskDrawer : public QskPopup
     void setEdge( Qt::Edge );
     Qt::Edge edge() const;
 
-    QRectF layoutRectForSize( const QSizeF& ) const override;
+    void setDragMargin( qreal );
+    qreal dragMargin() const;
+
     void updateLayout() override;
 
   Q_SIGNALS:
     void edgeChanged( Qt::Edge );
+    void dragMarginChanged( qreal );
 
   protected:
-    void aboutToShow() override;
     void itemChange( ItemChange, const ItemChangeData& ) override;
 
+    QSizeF layoutSizeHint( Qt::SizeHint, const QSizeF& ) const override;
     void gestureEvent( QskGestureEvent* ) override;
 
   private:
-    void startFading( bool );
+    void setFading( bool );
 
     class PrivateData;
     std::unique_ptr< PrivateData > m_data;

src/controls/QskGestureRecognizer.cpp

@@ -142,12 +142,9 @@ Qt::MouseButtons QskGestureRecognizer::acceptedMouseButtons() const
     return m_data->buttons;
 }
 
-QRectF QskGestureRecognizer::gestureRect() const
+bool QskGestureRecognizer::isAcceptedPos( const QPointF& pos ) const
 {
-    if ( m_data->watchedItem )
+    return m_data->watchedItem && m_data->watchedItem->contains( pos );
-        return qskItemRect( m_data->watchedItem );
-
-    return QRectF( 0.0, 0.0, -1.0, -1.0 );
 }
 
 void QskGestureRecognizer::setRejectOnTimeout( bool on )
@@ -313,7 +310,7 @@ bool QskGestureRecognizer::processMouseEvent(
 
     if ( event->type() == QEvent::MouseButtonPress )
     {
-        if ( !gestureRect().contains( pos ) )
+        if ( !isAcceptedPos( pos ) )
             return false;
 
         if ( m_data->state != Idle )

src/controls/QskGestureRecognizer.h

@@ -73,7 +73,7 @@ class QSK_EXPORT QskGestureRecognizer : public QObject
 
     State state() const;
 
-    virtual QRectF gestureRect() const;
+    virtual bool isAcceptedPos( const QPointF& ) const;
 
   Q_SIGNALS:
     void stateChanged( State from, State to );

src/controls/QskListViewSkinlet.h

@@ -24,7 +24,7 @@ class QSK_EXPORT QskListViewSkinlet : public QskScrollViewSkinlet
   public:
     enum NodeRole
     {
-        TextRole,
+        TextRole = Inherited::RoleCount,
         GraphicRole,
 
         RoleCount

src/controls/QskMenuSkinlet.cpp

@@ -9,12 +9,14 @@
 #include "QskGraphic.h"
 #include "QskColorFilter.h"
 #include "QskTextOptions.h"
-#include "QskSGNode.h"
 #include "QskFunctions.h"
 #include "QskMargins.h"
 #include "QskFunctions.h"
 #include "QskLabelData.h"
 
+#include "QskSGNode.h"
+#include "QskSlideInNode.h"
+
 #include <qfontmetrics.h>
 #include <qmath.h>
 
@@ -209,11 +211,44 @@ QskMenuSkinlet::QskMenuSkinlet( QskSkin* skin )
     : Inherited( skin )
     , m_data( new PrivateData() )
 {
-    appendNodeRoles( { PanelRole } );
+    appendNodeRoles( { ContentsRole, PanelRole } );
 }
 
 QskMenuSkinlet::~QskMenuSkinlet() = default;
 
+QSGNode* QskMenuSkinlet::updateSubNode(
+    const QskSkinnable* skinnable, quint8 nodeRole, QSGNode* node ) const
+{
+    switch ( nodeRole )
+    {
+        case ContentsRole:
+        {
+            /*
+                QskSlideInNode works for controls made of nodes - not for
+                containers of other quick items. TODO ...
+             */
+
+            const auto popup = static_cast< const QskPopup* >( skinnable );
+
+            auto rect = popup->contentsRect();
+            if ( rect.isEmpty() )
+                return nullptr;
+
+            auto slideInNode = QskSGNode::ensureNode< QskSlideInNode >( node );
+
+            const auto progress = popup->metric( popup->faderAspect() );
+            slideInNode->updateTranslation( rect, Qt::TopEdge, progress );
+
+            auto contentsNode = updateContentsNode( popup, slideInNode->contentsNode() );
+            slideInNode->setContentsNode( contentsNode );
+
+            return slideInNode;
+        }
+    }
+
+    return Inherited::updateSubNode( skinnable, nodeRole, node );
+}
+
 QRectF QskMenuSkinlet::cursorRect(
     const QskSkinnable* skinnable, const QRectF& contentsRect, int index ) const
 {
@@ -407,7 +442,8 @@ QskAspect::States QskMenuSkinlet::sampleStates(
             }
         }
 
-        const auto cursorPos = menu->effectiveSkinHint( Q::Segment | Q::Hovered | A::Metric | A::Position ).toPointF();
+        const auto cursorPos = menu->effectiveSkinHint(
+            Q::Segment | Q::Hovered | A::Metric | A::Position ).toPointF();
 
         if( !cursorPos.isNull() && menu->indexAtPosition( cursorPos ) == index )
         {

src/controls/QskMenuSkinlet.h

@@ -20,7 +20,9 @@ class QSK_EXPORT QskMenuSkinlet : public QskPopupSkinlet
   public:
     enum NodeRole
     {
-        PanelRole = QskPopupSkinlet::RoleCount,
+        ContentsRole = Inherited::RoleCount,
+        PanelRole,
+
         RoleCount
     };
 
@@ -48,7 +50,10 @@ class QSK_EXPORT QskMenuSkinlet : public QskPopupSkinlet
         Qt::SizeHint, const QSizeF& ) const override;
 
   protected:
-    QSGNode* updateContentsNode( const QskPopup*, QSGNode* ) const override;
+    QSGNode* updateSubNode( const QskSkinnable*,
+        quint8 nodeRole, QSGNode* ) const override;
+
+    QSGNode* updateContentsNode( const QskPopup*, QSGNode* ) const;
     QSGNode* updateMenuNode( const QskSkinnable*, QSGNode* ) const;
 
     QSGNode* updateSampleNode( const QskSkinnable*,

src/controls/QskPopupSkinlet.cpp

@@ -5,108 +5,11 @@
 
 #include "QskPopupSkinlet.h"
 #include "QskPopup.h"
-#include "QskSGNode.h"
-
-#include <qtransform.h>
-#include <qsgnode.h>
-#include <qquickwindow.h>
-
-namespace
-{
-    class RootNode : public QSGNode
-    {
-      public:
-        ~RootNode() override
-        {
-            delete m_clipNode;
-            delete m_transformNode;
-            delete m_contentsNode;
-        }
-
-        void setClipRect( const QRectF& rect )
-        {
-            if ( m_clipNode == nullptr )
-            {
-                m_clipNode = new QSGClipNode();
-                m_clipNode->setFlag( QSGNode::OwnedByParent, false );
-                m_clipNode->setIsRectangular( true );
-            }
-
-            m_clipNode->setClipRect( rect );
-        }
-
-        void resetClip()
-        {
-            delete m_clipNode;
-            m_clipNode = nullptr;
-        }
-
-        void setTranslation( qreal dx, qreal dy )
-        {
-            if ( dx != 0.0 || dy != 0.0 )
-            {
-                if ( m_transformNode == nullptr )
-                {
-                    m_transformNode = new QSGTransformNode();
-                    m_transformNode->setFlag( QSGNode::OwnedByParent, false );
-                }
-
-                QTransform transform;
-                transform.translate( dx, dy );
-
-                m_transformNode->setMatrix( transform );
-            }
-            else
-            {
-                delete m_transformNode;
-                m_transformNode = nullptr;
-            }
-        }
-
-        void setContentsNode( QSGNode* contentsNode )
-        {
-            if ( m_contentsNode != contentsNode )
-            {
-                if ( contentsNode )
-                    contentsNode->setFlag( QSGNode::OwnedByParent, false );
-
-                delete m_contentsNode;
-                m_contentsNode = contentsNode;
-            }
-        }
-
-        void rearrangeNodes()
-        {
-            const std::initializer_list< QSGNode* > nodes =
-                { m_clipNode, m_transformNode, m_contentsNode };
-
-            QSGNode* parentNode = this;
-            for ( auto node : nodes )
-            {
-                if ( node )
-                {
-                    QskSGNode::setParentNode( node, parentNode );
-                    parentNode = node;
-                }
-            }
-        }
-
-        inline QSGNode* contentsNode()
-        {
-            return m_contentsNode;
-        }
-
-      private:
-        QSGClipNode* m_clipNode = nullptr;
-        QSGTransformNode* m_transformNode = nullptr;
-        QSGNode* m_contentsNode = nullptr;
-    };
-}
 
 QskPopupSkinlet::QskPopupSkinlet( QskSkin* skin )
     : Inherited( skin )
 {
-    appendNodeRoles( { OverlayRole, ContentsRole } );
+    appendNodeRoles( { OverlayRole } );
 }
 
 QskPopupSkinlet::~QskPopupSkinlet() = default;
@@ -125,54 +28,13 @@ QRectF QskPopupSkinlet::subControlRect( const QskSkinnable* skinnable,
 QSGNode* QskPopupSkinlet::updateSubNode(
     const QskSkinnable* skinnable, quint8 nodeRole, QSGNode* node ) const
 {
-    const auto popup = static_cast< const QskPopup* >( skinnable );
-
     switch ( nodeRole )
     {
         case OverlayRole:
             return updateBoxNode( skinnable, node, QskPopup::Overlay );
-
-        case ContentsRole:
-            return updateExtraNode( popup, node );
     }
 
     return Inherited::updateSubNode( skinnable, nodeRole, node );
 }
 
-QSGNode* QskPopupSkinlet::updateExtraNode( const QskPopup* popup, QSGNode* node ) const
-{
-    auto cr = popup->contentsRect();
-    if ( cr.isEmpty() )
-        return nullptr;
-
-    auto rootNode = QskSGNode::ensureNode< RootNode >( node );
-
-    const auto faderProgress = popup->metric( popup->faderAspect() );
-    if ( faderProgress > 0.0 && faderProgress <= 1.0 )
-    {
-        auto clipRect = QRectF( popup->mapFromScene( QPointF() ), popup->window()->size() );
-        clipRect.setTop( cr.top() );
-
-        rootNode->setClipRect( clipRect );
-    }
-    else
-    {
-        rootNode->resetClip();
-    }
-
-    rootNode->setTranslation( 0.0, -faderProgress * cr.height() );
-
-    auto contentsNode = updateContentsNode( popup, rootNode->contentsNode() );
-    rootNode->setContentsNode( contentsNode );
-
-    rootNode->rearrangeNodes();
-
-    return rootNode;
-}
-
-QSGNode* QskPopupSkinlet::updateContentsNode( const QskPopup*, QSGNode* ) const
-{
-    return nullptr;
-}
-
 #include "moc_QskPopupSkinlet.cpp"

src/controls/QskPopupSkinlet.h

@@ -20,8 +20,6 @@ class QSK_EXPORT QskPopupSkinlet : public QskSkinlet
     enum NodeRole
     {
         OverlayRole,
-        ContentsRole,
-
         RoleCount
     };
 
@@ -35,10 +33,7 @@ class QSK_EXPORT QskPopupSkinlet : public QskSkinlet
     QSGNode* updateSubNode( const QskSkinnable*,
         quint8 nodeRole, QSGNode* ) const override;
 
-    virtual QSGNode* updateContentsNode( const QskPopup*, QSGNode* ) const;
-
   private:
-    QSGNode* updateExtraNode( const QskPopup*, QSGNode* ) const;
     QSGNode* updateOverlayNode( const QskPopup*, QSGNode* ) const;
 };
 

src/controls/QskScrollBox.cpp

@@ -136,15 +136,15 @@ namespace
             setOrientations( Qt::Horizontal | Qt::Vertical );
         }
 
-        QRectF gestureRect() const override
+        bool isAcceptedPos( const QPointF& pos ) const override
         {
             if ( auto scrollBox = qobject_cast< const QskScrollBox* >( watchedItem() ) )
             {
                 if ( qskIsScrollable( scrollBox, orientations() ) )
-                    return scrollBox->viewContentsRect();
+                    return scrollBox->viewContentsRect().contains( pos );
             }
 
-            return QRectF( 0.0, 0.0, -1.0, -1.0 ); // empty
+            return false;
         }
     };
 }

src/controls/QskSkinnable.cpp

@@ -1259,14 +1259,20 @@ bool QskSkinnable::isTransitionAccepted( QskAspect aspect ) const
 {
     Q_UNUSED( aspect )
 
+    if ( auto control = qskControlCast( owningItem() ) )
+    {
         /*
             Usually we only need smooth transitions, when state changes
             happen while the skinnable is visible. There are few exceptions
             like QskPopup::Closed, that is used to slide/fade in.
          */
-    if ( auto control = qskControlCast( owningItem() ) )
+
+        if ( control->flags() & QQuickItem::ItemHasContents )
             return control->isInitiallyPainted();
 
+        return true;
+    }
+
     return false;
 }
 

src/nodes/QskSlideInNode.cpp

@@ -0,0 +1,146 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#include "QskSlideInNode.h"
+#include "QskSGNode.h"
+#include <qtransform.h>
+
+QSK_QT_PRIVATE_BEGIN
+#include <private/qsgnode_p.h>
+QSK_QT_PRIVATE_END
+
+class QskSlideInNodePrivate final : public QSGNodePrivate
+{
+  public:
+    ~QskSlideInNodePrivate()
+    {
+        delete clipNode;
+        delete transformNode;
+        delete contentsNode;
+    }
+
+    void reparentContentNode( QskSlideInNode* node )
+    {
+        if ( contentsNode )
+        {
+            QSGNode* parentNode = transformNode;
+
+            if ( parentNode == nullptr )
+                parentNode = clipNode;
+
+            if ( parentNode == nullptr )
+                parentNode = node;
+
+            QskSGNode::setParentNode( contentsNode, parentNode );
+        }
+    }
+
+    QSGClipNode* clipNode = nullptr;
+    QSGTransformNode* transformNode = nullptr;
+    QSGNode* contentsNode = nullptr;
+};
+
+QskSlideInNode::QskSlideInNode()
+    : QSGNode( *new QskSlideInNodePrivate, QSGNode::BasicNodeType )
+{
+}
+
+QskSlideInNode::~QskSlideInNode() = default;
+
+void QskSlideInNode::updateTranslation( const QRectF& rect,
+    Qt::Edge edge, qreal progress )
+{
+    Q_UNUSED( edge ); // TODO ...
+
+    Q_D( QskSlideInNode );
+
+    {
+        // clipping
+
+        if ( progress > 0.0 && progress <= 1.0 )
+        {
+            if ( d->clipNode == nullptr )
+            {
+                d->clipNode = new QSGClipNode();
+                d->clipNode->setFlag( QSGNode::OwnedByParent, false );
+                d->clipNode->setIsRectangular( true );
+            }
+
+            d->clipNode->setClipRect( rect );
+
+        }
+        else
+        {
+            delete d->clipNode;
+            d->clipNode = nullptr;
+        }
+
+        if ( d->clipNode )
+            QskSGNode::setParentNode( d->clipNode, this );
+    }
+
+    {
+        // translation
+
+        qreal dx = 0.0;
+        qreal dy = -progress* rect.height();
+
+        if ( dx != 0.0 || dy != 0.0 )
+        {
+            if ( d->transformNode == nullptr )
+            {
+                d->transformNode = new QSGTransformNode();
+                d->transformNode->setFlag( QSGNode::OwnedByParent, false );
+            }
+
+            QTransform transform;
+            transform.translate( dx, dy );
+
+            d->transformNode->setMatrix( transform );
+        }
+        else
+        {
+            delete d->transformNode;
+            d->transformNode = nullptr;
+        }
+
+        if ( d->transformNode )
+        {
+            QSGNode* parentNode = d->clipNode;
+            if ( parentNode == nullptr )
+                parentNode = this;
+
+            QskSGNode::setParentNode( d->transformNode, parentNode );
+        }
+    }
+
+    d->reparentContentNode( this );
+}
+
+void QskSlideInNode::setContentsNode( QSGNode* node )
+{
+    Q_D( QskSlideInNode );
+
+    if ( d->contentsNode == node )
+        return;
+
+    if ( node )
+        node->setFlag( QSGNode::OwnedByParent, false );
+
+    delete d->contentsNode;
+    d->contentsNode = node;
+
+    d->reparentContentNode( this );
+}
+
+QSGNode* QskSlideInNode::contentsNode()
+{
+    return d_func()->contentsNode;
+}
+
+const QSGNode* QskSlideInNode::contentsNode() const
+{
+    return d_func()->contentsNode;
+}

src/nodes/QskSlideInNode.h

@@ -0,0 +1,33 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#ifndef QSK_SLIDE_IN_NODE_H
+#define QSK_SLIDE_IN_NODE_H
+
+#include "QskGlobal.h"
+
+#include <qsgnode.h>
+#include <qnamespace.h>
+
+class QskSlideInNodePrivate;
+
+class QSK_EXPORT QskSlideInNode : public QSGNode
+{
+  public:
+    QskSlideInNode();
+    ~QskSlideInNode() override;
+
+    void updateTranslation( const QRectF&, Qt::Edge, qreal progress );
+
+    void setContentsNode( QSGNode* );
+
+    QSGNode* contentsNode();
+    const QSGNode* contentsNode() const;
+
+  private:
+    Q_DECLARE_PRIVATE( QskSlideInNode )
+};
+
+#endif