QmlDesigner: Add singleton getter to model

Task-number: QDS-13601
Change-Id: Iaf97f18f98435b05a801453a7d253eba73eaa237
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/qmldesigner/libs/designercore/include/model.h

@@ -59,6 +59,8 @@ class TextModifier;
 class ItemLibraryEntry;
 
 using PropertyListType = QList<QPair<PropertyName, QVariant>>;
+template<qsizetype size>
+using SmallNodeMetaInfos = QVarLengthArray<NodeMetaInfo, size>;
 
 enum class BypassModelResourceManagement { No, Yes };
 
@@ -201,7 +203,11 @@ public:
     NodeMetaInfo vector2dMetaInfo() const;
     NodeMetaInfo vector3dMetaInfo() const;
     NodeMetaInfo vector4dMetaInfo() const;
-    QVarLengthArray<NodeMetaInfo, 256> metaInfosForModule(Module module) const;
+
+#ifdef QDS_USE_PROJECTSTORAGE
+    SmallNodeMetaInfos<256> metaInfosForModule(Module module) const;
+    SmallNodeMetaInfos<256> singletonMetaInfos() const;
+#endif
 
     QList<ItemLibraryEntry> itemLibraryEntries() const;
 

src/plugins/qmldesigner/libs/designercore/include/nodemetainfo.h

@@ -293,6 +293,8 @@ private:
 };
 
 using NodeMetaInfos = std::vector<NodeMetaInfo>;
+template<qsizetype size>
+using SmallNodeMetaInfos = QVarLengthArray<NodeMetaInfo, size>;
 
 } //QmlDesigner
 

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

@@ -2726,18 +2726,27 @@ NodeMetaInfo Model::vector4dMetaInfo() const
     }
 }
 
+#ifdef QDS_USE_PROJECTSTORAGE
+
 QVarLengthArray<NodeMetaInfo, 256> Model::metaInfosForModule(Module module) const
 {
-    if constexpr (useProjectStorage()) {
         using namespace Storage::Info;
 
         return Utils::transform<QVarLengthArray<NodeMetaInfo, 256>>(
             d->projectStorage->typeIds(module.id()), NodeMetaInfo::bind(d->projectStorage));
-    } else {
-        return {};
-    }
 }
 
+SmallNodeMetaInfos<256> Model::singletonMetaInfos() const
+{
+    using namespace Storage::Info;
+
+    return Utils::transform<QVarLengthArray<NodeMetaInfo, 256>>(d->projectStorage->singletonTypeIds(
+                                                                    d->m_sourceId),
+                                                                NodeMetaInfo::bind(d->projectStorage));
+}
+
+#endif
+
 QList<ItemLibraryEntry> Model::itemLibraryEntries() const
 {
 #ifdef QDS_USE_PROJECTSTORAGE

tests/unit/tests/unittests/model/model-test.cpp

@@ -1095,13 +1095,23 @@ TEST_F(Model_MetaInfo, meta_infos_for_mdoule)
     auto module = model.module("Foo", ModuleKind::QmlLibrary);
     auto typeId = projectStorageMock.createObject(module.id(), "Bar");
     ON_CALL(projectStorageMock, typeIds(module.id()))
-        .WillByDefault(Return(QVarLengthArray<QmlDesigner::TypeId, 256>{typeId}));
+        .WillByDefault(Return(QmlDesigner::SmallTypeIds<256>{typeId}));
 
     auto types = model.metaInfosForModule(module);
 
     ASSERT_THAT(types, ElementsAre(Eq(QmlDesigner::NodeMetaInfo{typeId, &projectStorageMock})));
 }
 
+TEST_F(Model_MetaInfo, singleton_meta_infos)
+{
+    ON_CALL(projectStorageMock, singletonTypeIds(filePathId))
+        .WillByDefault(Return(QmlDesigner::SmallTypeIds<256>{itemTypeId}));
+
+    auto types = model.singletonMetaInfos();
+
+    ASSERT_THAT(types, ElementsAre(Eq(QmlDesigner::NodeMetaInfo{itemTypeId, &projectStorageMock})));
+}
+
 TEST_F(Model_MetaInfo, create_node_resolved_meta_type)
 {
     auto node = model.createModelNode("Item");