QmlDesigner: Add hints for visibility in library and navigator

Change-Id: If5d3a4c34a0010cc5a826296aa428a5915142659
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/components/itemlibrary/itemlibrarymodel.cpp

@@ -30,6 +30,7 @@
 #include "itemlibrarysection.h"
 
 #include <model.h>
+#include <nodehints.h>
 #include <nodemetainfo.h>
 
 #include <utils/algorithm.h>
@@ -184,8 +185,10 @@ void ItemLibraryModel::update(ItemLibraryInfo *itemLibraryInfo, Model *model)
             qDebug() << Utils::transform(metaInfo.superClasses(), &NodeMetaInfo::typeName);
         }
 
+        bool forceVisiblity = valid && NodeHints::fromItemLibraryEntry(entry).visibleInLibrary();
+
         if (valid
-                && isItem //We can change if the navigator does support pure QObjects
+                && (isItem || forceVisiblity) //We can change if the navigator does support pure QObjects
                 && (entry.requiredImport().isEmpty()
                     || model->hasImport(entryToImport(entry), true, true))) {
             QString itemSectionName = entry.category();

src/plugins/qmldesigner/components/navigator/navigatortreemodel.cpp

@@ -252,7 +252,7 @@ QList<ModelNode> filteredList(const NodeListProperty &property, bool filter)
         return property.toModelNodeList();
 
     return Utils::filtered(property.toModelNodeList(), [] (const ModelNode &arg) {
-        return QmlItemNode::isValidQmlItemNode(arg);
+        return QmlItemNode::isValidQmlItemNode(arg) || NodeHints::fromModelNode(arg).visibleInNavigator();
     });
 }
 

src/plugins/qmldesigner/components/navigator/navigatorview.cpp

@@ -48,6 +48,7 @@
 #include <utils/utilsicons.h>
 
 #include <QHeaderView>
+#include <QTimer>
 
 
 static inline void setScenePos(const QmlDesigner::ModelNode &modelNode,const QPointF &pos)
@@ -147,15 +148,21 @@ void NavigatorView::modelAttached(Model *model)
 {
     AbstractView::modelAttached(model);
 
-    m_currentModelInterface->setFilter(
-                DesignerSettings::getValue(DesignerSettingsKey::NAVIGATOR_SHOW_ONLY_VISIBLE_ITEMS).toBool());
-
     QTreeView *treeView = treeWidget();
-    treeView->expandAll();
 
     treeView->header()->setSectionResizeMode(0, QHeaderView::Stretch);
     treeView->header()->resizeSection(1,26);
     treeView->setIndentation(20);
+
+    m_currentModelInterface->setFilter(false);
+
+
+    QTimer::singleShot(0, this, [this, treeView]() {
+        m_currentModelInterface->setFilter(
+                    DesignerSettings::getValue(DesignerSettingsKey::NAVIGATOR_SHOW_ONLY_VISIBLE_ITEMS).toBool());
+        treeView->expandAll();
+    });
+
 #ifdef _LOCK_ITEMS_
     treeView->header()->resizeSection(2,20);
 #endif

src/plugins/qmldesigner/designercore/include/nodehints.h

@@ -65,6 +65,8 @@ public:
     bool canBeReparentedTo(const ModelNode &potenialParent);
     QString indexPropertyForStackedContainer() const;
     bool takesOverRenderingOfChildren() const;
+    bool visibleInNavigator() const;
+    bool visibleInLibrary() const;
 
     QHash<QString, QString> hints() const;
     static NodeHints fromModelNode(const ModelNode &modelNode);

src/plugins/qmldesigner/designercore/metainfo/nodehints.cpp

@@ -201,6 +201,19 @@ bool NodeHints::takesOverRenderingOfChildren() const
     return evaluateBooleanExpression("takesOverRenderingOfChildren", false);
 }
 
+bool NodeHints::visibleInNavigator() const
+{
+    if (!isValid())
+        return false;
+
+    return evaluateBooleanExpression("visibleInNavigator", false);
+}
+
+bool NodeHints::visibleInLibrary() const
+{
+    return evaluateBooleanExpression("visibleInLibrary", true);
+}
+
 QHash<QString, QString> NodeHints::hints() const
 {
     return m_hints;