Persist option3daction state

- the selected option3daction state is persisted between sessions.
- option3daction state do not change to 2D anymore when there is no
3D view in the scene. It just becomes disabled.
- option3daction is enabled/disabled based on existence of Nodes
  not View3D
- some relevant tweaks and refactoring.

Task-number: QDS-1538
Change-Id: I27f6f00cf7840204af6fc0f033dcf55bdddc7ad4
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/components/formeditor/formeditorview.cpp

@@ -95,12 +95,12 @@ void FormEditorView::modelAttached(Model *model)
         m_formEditorWidget->option3DAction()->setEnabled(false);
 
     if (!rewriterView()->errors().isEmpty())
-        formEditorWidget()->showErrorMessageBox(rewriterView()->errors());
+        m_formEditorWidget->showErrorMessageBox(rewriterView()->errors());
     else
-        formEditorWidget()->hideErrorMessageBox();
+        m_formEditorWidget->hideErrorMessageBox();
 
     if (!rewriterView()->warnings().isEmpty())
-        formEditorWidget()->showWarningMessageBox(rewriterView()->warnings());
+        m_formEditorWidget->showWarningMessageBox(rewriterView()->warnings());
 }
 
 
@@ -201,36 +201,37 @@ void FormEditorView::createFormEditorWidget()
     auto formEditorContext = new Internal::FormEditorContext(m_formEditorWidget.data());
     Core::ICore::addContextObject(formEditorContext);
 
-    connect(formEditorWidget()->zoomAction(), &ZoomAction::zoomLevelChanged, [this]() {
+    connect(m_formEditorWidget->zoomAction(), &ZoomAction::zoomLevelChanged, [this]() {
         m_currentTool->formEditorItemsChanged(scene()->allFormEditorItems());
     });
-    connect(formEditorWidget()->showBoundingRectAction(), &QAction::toggled,
-            scene(), &FormEditorScene::setShowBoundingRects);
+
+    connect(m_formEditorWidget->showBoundingRectAction(), &QAction::toggled, scene(), &FormEditorScene::setShowBoundingRects);
+    connect(m_formEditorWidget->option3DAction(), &Option3DAction::enabledChanged, this, &FormEditorView::toggle3DViewEnabled);
+    connect(m_formEditorWidget->resetAction(), &QAction::triggered, this, &FormEditorView::resetNodeInstanceView);
 }
 
 void FormEditorView::temporaryBlockView()
 {
-    formEditorWidget()->graphicsView()->setUpdatesEnabled(false);
+    m_formEditorWidget->graphicsView()->setUpdatesEnabled(false);
     static auto timer = new QTimer(qApp);
     timer->setSingleShot(true);
     timer->start(1000);
 
     connect(timer, &QTimer::timeout, this, [this]() {
-        formEditorWidget()->graphicsView()->setUpdatesEnabled(true);
+        m_formEditorWidget->graphicsView()->setUpdatesEnabled(true);
     });
 }
 
 void FormEditorView::nodeCreated(const ModelNode &node)
 {
     //If the node has source for components/custom parsers we ignore it.
-    if (QmlItemNode::isValidQmlItemNode(node) && node.nodeSourceType() == ModelNode::NodeWithoutSource) { //only setup QmlItems
+    if (QmlItemNode::isValidQmlItemNode(node) && node.nodeSourceType() == ModelNode::NodeWithoutSource) //only setup QmlItems
         setupFormEditorItemTree(QmlItemNode(node));
-
-        if (node.isSubclassOf("QtQuick3D.View3D"))
-            m_formEditorWidget->option3DAction()->setEnabled(true);
-    }
     else if (QmlVisualNode::isFlowTransition(node))
         setupFormEditorItemTree(QmlItemNode(node));
+
+    if (node.isSubclassOf("QtQuick3D.Node"))
+        m_formEditorWidget->option3DAction()->setEnabled(true);
 }
 
 void FormEditorView::modelAboutToBeDetached(Model *model)
@@ -263,15 +264,13 @@ void FormEditorView::nodeAboutToBeRemoved(const ModelNode &removedNode)
 
     removeNodeFromScene(qmlItemNode);
 
-    const QList<ModelNode> views3D = rootModelNode().subModelNodesOfType("QtQuick3D.View3D");
+    const QList<ModelNode> nodes3D = rootModelNode().subModelNodesOfType("QtQuick3D.Node");
 
-    // if no more View3D(s) exist after the node removal, set option3DAction to 2D and disable it
-    bool hasView3D = views3D.size() > 1 || (views3D.size() == 1 && views3D[0] != removedNode);
-    if (!hasView3D) {
-        rootModelNode().removeAuxiliaryData("3d-view"); // this will cause option3DAction to select 2D option
+    // if no more 3D Nodes exist after the node removal, disable option3DAction
+    bool hasView3D = nodes3D.size() > 1 || (nodes3D.size() == 1 && nodes3D[0] != removedNode);
+    if (!hasView3D)
         m_formEditorWidget->option3DAction()->setEnabled(false);
 }
-}
 
 void FormEditorView::rootNodeTypeChanged(const QString &/*type*/, int /*majorVersion*/, int /*minorVersion*/)
 {
@@ -396,16 +395,16 @@ void FormEditorView::bindingPropertiesChanged(const QList<BindingProperty> &prop
 void FormEditorView::documentMessagesChanged(const QList<DocumentMessage> &errors, const QList<DocumentMessage> &)
 {
     if (!errors.isEmpty())
-        formEditorWidget()->showErrorMessageBox(errors);
+        m_formEditorWidget->showErrorMessageBox(errors);
     else
-        formEditorWidget()->hideErrorMessageBox();
+        m_formEditorWidget->hideErrorMessageBox();
 }
 
 void FormEditorView::customNotification(const AbstractView * /*view*/, const QString &identifier, const QList<ModelNode> &/*nodeList*/, const QList<QVariant> &/*data*/)
 {
-    if (identifier == QStringLiteral("puppet crashed"))
+    if (identifier == QLatin1String("puppet crashed"))
         m_dragTool->clearMoveDelay();
-    if (identifier == QStringLiteral("reset QmlPuppet"))
+    if (identifier == QLatin1String("reset QmlPuppet"))
         temporaryBlockView();
 }
 
@@ -525,6 +524,7 @@ void FormEditorView::auxiliaryDataChanged(const ModelNode &node, const PropertyN
                 newNode.deselectNode();
         }
     } else if (name == "3d-view") {
+        DesignerSettings::setValue(DesignerSettingsKey::VIEW_3D_ACTIVE, data);
         m_formEditorWidget->option3DAction()->set3DEnabled(data.toBool());
     } else if (item.isFlowTransition() || item.isFlowItem() || item.isFlowActionArea()) {
         FormEditorItem *editorItem = m_scene->itemForQmlItemNode(item);
@@ -660,12 +660,16 @@ void FormEditorView::toggle3DViewEnabled(bool enabled)
 {
     QTC_ASSERT(model(), return);
     QTC_ASSERT(rootModelNode().isValid(), return);
+
     if (enabled)
         rootModelNode().setAuxiliaryData("3d-view", true);
     else
         rootModelNode().removeAuxiliaryData("3d-view");
 
-    nodeInstanceView()->enable3DView(enabled);
+    resetNodeInstanceView();
+
+    // TODO: the line below is not in use. It should replace the resetNodeInstanceView(); to have a clean API
+//    nodeInstanceView()->enable3DView(enabled);
 }
 
 QmlItemNode findRecursiveQmlItemNode(const QmlObjectNode &firstQmlObjectNode)
@@ -716,6 +720,12 @@ bool FormEditorView::isMoveToolAvailable() const
     return true;
 }
 
+void FormEditorView::resetNodeInstanceView()
+{
+    setCurrentStateNode(rootModelNode());
+    resetPuppet();
+}
+
 void FormEditorView::reset()
 {
    QTimer::singleShot(200, this, &FormEditorView::delayedReset);

src/plugins/qmldesigner/components/formeditor/formeditorview.h

@@ -121,22 +121,20 @@ public:
 
     void exportAsImage();
 
-    void toggle3DViewEnabled(bool enabled);
-    void setupOption3DAction();
-
 protected:
     void reset();
     void delayedReset();
     bool isMoveToolAvailable() const;
 
-private: //functions
+private:
     void setupFormEditorItemTree(const QmlItemNode &qmlItemNode);
     void removeNodeFromScene(const QmlItemNode &qmlItemNode);
     void hideNodeFromScene(const QmlItemNode &qmlItemNode);
     void createFormEditorWidget();
     void temporaryBlockView();
+    void resetNodeInstanceView();
+    void toggle3DViewEnabled(bool enabled);
 
-private: //variables
     QPointer<FormEditorWidget> m_formEditorWidget;
     QPointer<FormEditorScene> m_scene;
     QList<AbstractCustomTool*> m_customToolList;

src/plugins/qmldesigner/components/formeditor/formeditorwidget.cpp

@@ -148,10 +148,6 @@ FormEditorWidget::FormEditorWidget(FormEditorView *view) :
     addAction(m_option3DAction.data());
     upperActions.append(m_option3DAction.data());
     m_toolBox->addRightSideAction(m_option3DAction.data());
-    connect(m_option3DAction.data(), &Option3DAction::enabledChanged,
-            m_formEditorView.data(), &FormEditorView::toggle3DViewEnabled);
-    connect(m_option3DAction.data(), &Option3DAction::activated,
-            this, &FormEditorWidget::resetNodeInstanceView);
 
     m_zoomAction = new ZoomAction(m_toolActionGroup.data());
     connect(m_zoomAction.data(), &ZoomAction::zoomLevelChanged,
@@ -164,7 +160,7 @@ FormEditorWidget::FormEditorWidget(FormEditorView *view) :
     m_resetAction->setShortcut(Qt::Key_R);
     m_resetAction->setShortcutContext(Qt::WidgetWithChildrenShortcut);
     m_resetAction->setIcon(Utils::Icons::RESET_TOOLBAR.icon());
-    connect(m_resetAction.data(), &QAction::triggered, this, &FormEditorWidget::resetNodeInstanceView);
+
     addAction(m_resetAction.data());
     upperActions.append(m_resetAction.data());
     m_toolBox->addRightSideAction(m_resetAction.data());
@@ -209,12 +205,6 @@ void FormEditorWidget::changeBackgound(const QColor &color)
         m_graphicsView->activateColoredBackground(color);
 }
 
-void FormEditorWidget::resetNodeInstanceView()
-{
-    m_formEditorView->setCurrentStateNode(m_formEditorView->rootModelNode());
-    m_formEditorView->resetPuppet();
-}
-
 void FormEditorWidget::wheelEvent(QWheelEvent *event)
 {
     if (event->modifiers().testFlag(Qt::ControlModifier)) {
@@ -299,6 +289,11 @@ Option3DAction *FormEditorWidget::option3DAction() const
     return m_option3DAction.data();
 }
 
+QAction *FormEditorWidget::resetAction() const
+{
+    return m_resetAction.data();
+}
+
 QAction *FormEditorWidget::showBoundingRectAction() const
 {
     return m_showBoundingRectAction.data();

src/plugins/qmldesigner/components/formeditor/formeditorwidget.h

@@ -58,6 +58,7 @@ public:
     QAction *showBoundingRectAction() const;
     QAction *snappingAction() const;
     QAction *snappingAndAnchoringAction() const;
+    QAction *resetAction() const;
 
     void setScene(FormEditorScene *scene);
     ToolBox *toolBox() const;
@@ -97,9 +98,7 @@ private:
     void changeRootItemWidth(const QString &widthText);
     void changeRootItemHeight(const QString &heightText);
     void changeBackgound(const QColor &color);
-    void resetNodeInstanceView();
 
-private:
     QPointer<FormEditorView> m_formEditorView;
     QPointer<FormEditorGraphicsView> m_graphicsView;
     QPointer<ZoomAction> m_zoomAction;

src/plugins/qmldesigner/components/formeditor/option3daction.cpp

@@ -37,8 +37,11 @@ Option3DAction::Option3DAction(QObject *parent) :
 
 void Option3DAction::set3DEnabled(bool enabled)
 {
-    if (m_comboBox)
+    if (m_comboBox) {
+        m_comboBox->blockSignals(true);
         m_comboBox->setCurrentIndex(enabled ? 1 : 0);
+        m_comboBox->blockSignals(false);
+    }
 }
 
 QWidget *Option3DAction::createWidget(QWidget *parent)
@@ -50,17 +53,13 @@ QWidget *Option3DAction::createWidget(QWidget *parent)
     m_comboBox->addItem(tr("2D/3D"));
 
     m_comboBox->setCurrentIndex(0);
-    connect(m_comboBox, QOverload<int>::of(&QComboBox::currentIndexChanged),
-            this, [this](){
+    connect(m_comboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, [this]() {
         emit enabledChanged(m_comboBox->currentIndex() != 0);
     });
-    connect(m_comboBox, QOverload<int>::of(&QComboBox::activated),
-            this, [this](){
-        emit activated();
-    });
 
     m_comboBox->setProperty("hideborder", true);
     m_comboBox->setToolTip(tr("Enable/Disable 3D edit mode."));
+
     return m_comboBox;
 }
 

src/plugins/qmldesigner/components/formeditor/option3daction.h

@@ -41,7 +41,6 @@ public:
 
 signals:
     void enabledChanged(bool enabled);
-    void activated();
 
 protected:
     QWidget *createWidget(QWidget *parent) override;

src/plugins/qmldesigner/designercore/instances/puppetcreator.cpp

@@ -473,18 +473,16 @@ QProcessEnvironment PuppetCreator::processEnvironment() const
     }
 
 #ifndef QMLDESIGNER_TEST
-    AbstractView *view = nullptr;
-    view = QmlDesignerPlugin::instance()->viewManager().nodeInstanceView();
+    auto view = QmlDesignerPlugin::instance()->viewManager().nodeInstanceView();
     view->emitCustomNotification("PuppetStatus", {}, {QVariant(m_qrcMapping)});
 
+    // set env var and aux data if 3d-view is enabled
     QmlDesigner::Import import = QmlDesigner::Import::createLibraryImport("QtQuick3D", "1.0");
-    bool view3DEnabled = false;
-
-    if (m_model->hasImport(import, true, true))
-        view3DEnabled = view->rootModelNode().hasAuxiliaryData("3d-view");
-
-    if (view3DEnabled)
+    if (m_model->hasImport(import, true, true)
+        && DesignerSettings::getValue(DesignerSettingsKey::VIEW_3D_ACTIVE).toBool()) {
+        view->rootModelNode().setAuxiliaryData("3d-view", true);
         environment.set("QMLDESIGNER_QUICK3D_MODE", "true");
+     }
 #endif
 
     QStringList importPaths = m_model->importPaths();

src/plugins/qmldesigner/designercore/model/modelnode.cpp

@@ -797,7 +797,7 @@ const QList<ModelNode> ModelNode::directSubModelNodesOfType(const TypeName &type
 const QList<ModelNode> ModelNode::subModelNodesOfType(const TypeName &typeName) const
 {
     return Utils::filtered(allSubModelNodes(), [typeName](const ModelNode &node){
-        return node.metaInfo().isValid() && node.metaInfo().typeName() == typeName;
+        return node.metaInfo().isValid() && node.metaInfo().isSubclassOf(typeName);
     });
 }
 

src/plugins/qmldesigner/designersettings.cpp

@@ -84,6 +84,7 @@ void DesignerSettings::fromSettings(QSettings *settings)
                  );
     restoreValue(settings, DesignerSettingsKey::SIMPLE_COLOR_PALETTE_CONTENT, QStringList());
     restoreValue(settings, DesignerSettingsKey::ALWAYS_DESIGN_MODE, true);
+    restoreValue(settings, DesignerSettingsKey::VIEW_3D_ACTIVE, false);
 
     settings->endGroup();
     settings->endGroup();

src/plugins/qmldesigner/designersettings.h

@@ -67,6 +67,7 @@ const char STANDALONE_MODE[] = "StandAloneMode";
 const char ENABLE_TIMELINEVIEW[] = "EnableTimelineView";
 const char SIMPLE_COLOR_PALETTE_CONTENT[] = "SimpleColorPaletteContent";
 const char ALWAYS_DESIGN_MODE[] = "AlwaysDesignMode";
+const char VIEW_3D_ACTIVE[] = "View3DActive";
 }
 
 class DesignerSettings : public QHash<QByteArray, QVariant>