QmlDesigner: Allow dropping bundle materials to Navigator

Fixes: QDS-7844
Change-Id: If3c58f82797beabe76baf99ea2dddc59032729df
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

src/plugins/qmldesigner/components/materialbrowser/materialbrowserview.cpp

@@ -481,7 +481,6 @@ void MaterialBrowserView::customNotification(const AbstractView *view, const QSt
     } else if (identifier == "drop_bundle_material") {
         m_bundleMaterialDropTarget = nodeList.first();
 
-
         ModelNode defaultMat = getBundleMaterialDefaultInstance(m_draggedBundleMaterial->type());
         if (defaultMat.isValid())
             applyBundleMaterialToDropTarget(defaultMat);

src/plugins/qmldesigner/components/materialbrowser/materialbrowserwidget.cpp

@@ -132,12 +132,15 @@ bool MaterialBrowserWidget::eventFilter(QObject *obj, QEvent *event)
         } else if (m_bundleMaterialToDrag != nullptr) {
             QMouseEvent *me = static_cast<QMouseEvent *>(event);
             if ((me->globalPos() - m_dragStartPoint).manhattanLength() > 20) {
+                QByteArray data;
                 QMimeData *mimeData = new QMimeData;
-                mimeData->setData(Constants::MIME_TYPE_BUNDLE_MATERIAL, {});
+                QDataStream stream(&data, QIODevice::WriteOnly);
+                stream << m_bundleMaterialToDrag->type();
+                mimeData->setData(Constants::MIME_TYPE_BUNDLE_MATERIAL, data);
                 mimeData->removeFormat("text/plain");
 
-                model->startDrag(mimeData, m_bundleMaterialToDrag->icon().toLocalFile());
                 emit bundleMaterialDragStarted(m_bundleMaterialToDrag);
+                model->startDrag(mimeData, m_bundleMaterialToDrag->icon().toLocalFile());
                 m_bundleMaterialToDrag = {};
             }
         }

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

@@ -58,6 +58,8 @@ ChooseFromPropertyListFilter::ChooseFromPropertyListFilter(const NodeMetaInfo &i
     //  -> Attractor3D
     // Material
     //  -> Model
+    // BundleMaterial
+    //  -> Model
 
     const TypeName textureType = "QtQuick3D.Texture";
     if (insertInfo.isSubclassOf(textureType)) {
@@ -107,7 +109,10 @@ ChooseFromPropertyListFilter::ChooseFromPropertyListFilter(const NodeMetaInfo &i
                 || parentInfo.isSubclassOf("QtQuick3D.Particles3D.Attractor3D"))
             propertyList.append("shape");
     } else if (insertInfo.isSubclassOf("QtQuick3D.Material")) {
-        if (parentInfo.isSubclassOf("QtQuick3D.Particles3D.Model"))
+        if (parentInfo.isSubclassOf("QtQuick3D.Model"))
+            propertyList.append("materials");
+    } else if (insertInfo.typeName().startsWith("ComponentBundles.MaterialBundle")) {
+        if (parentInfo.isSubclassOf("QtQuick3D.Model"))
             propertyList.append("materials");
     }
 }

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

@@ -465,6 +465,7 @@ QStringList NavigatorTreeModel::mimeTypes() const
     const static QStringList types({Constants::MIME_TYPE_MODELNODE_LIST,
                                     Constants::MIME_TYPE_ITEM_LIBRARY_INFO,
                                     Constants::MIME_TYPE_MATERIAL,
+                                    Constants::MIME_TYPE_BUNDLE_MATERIAL,
                                     Constants::MIME_TYPE_ASSETS});
 
     return types;
@@ -562,6 +563,10 @@ bool NavigatorTreeModel::dropMimeData(const QMimeData *mimeData,
             handleItemLibraryItemDrop(mimeData, rowNumber, dropModelIndex);
         } else if (mimeData->hasFormat(Constants::MIME_TYPE_MATERIAL)) {
             handleMaterialDrop(mimeData, rowNumber, dropModelIndex);
+        } else if (mimeData->hasFormat(Constants::MIME_TYPE_BUNDLE_MATERIAL)) {
+            ModelNode targetNode(modelNodeForIndex(dropModelIndex));
+            if (targetNode.isValid())
+                m_view->emitCustomNotification("drop_bundle_material", {targetNode}); // To MaterialBrowserView
         } else if (mimeData->hasFormat(Constants::MIME_TYPE_ASSETS)) {
             const QStringList assetsPaths = QString::fromUtf8(mimeData->data(Constants::MIME_TYPE_ASSETS)).split(',');
             NodeAbstractProperty targetProperty;

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

@@ -284,6 +284,14 @@ void NavigatorView::dragStarted(QMimeData *mimeData)
 
         m_widget->setDragType(matNode.metaInfo().typeName());
         m_widget->update();
+    } else if (mimeData->hasFormat(Constants::MIME_TYPE_BUNDLE_MATERIAL)) {
+        QByteArray data = mimeData->data(Constants::MIME_TYPE_BUNDLE_MATERIAL);
+        QDataStream stream(data);
+        TypeName bundleMatType;
+        stream >> bundleMatType;
+
+        m_widget->setDragType(bundleMatType);
+        m_widget->update();
     }
 }