--- /dev/null
+package org.argeo.cms.e4.jcr.handlers;
+
+import java.util.List;
+
+import jakarta.inject.Named;
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.jcr.nodetype.NodeType;
+
+import org.argeo.cms.e4.jcr.JcrBrowserView;
+import org.argeo.cms.ui.jcr.model.SingleJcrNodeElem;
+import org.argeo.cms.ui.jcr.model.WorkspaceElem;
+import org.argeo.cms.ux.widgets.TreeParent;
+import org.argeo.eclipse.ui.dialogs.ErrorFeedback;
+import org.argeo.eclipse.ui.dialogs.SingleValue;
+import org.eclipse.e4.core.di.annotations.Execute;
+import org.eclipse.e4.ui.model.application.ui.basic.MPart;
+import org.eclipse.e4.ui.services.IServiceConstants;
+import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
+
+/**
+ * Adds a node of type nt:folder, only on {@link SingleJcrNodeElem} and
+ * {@link WorkspaceElem} TreeObject types.
+ *
+ * This handler assumes that a selection provider is available and picks only
+ * first selected item. It is UI's job to enable the command only when the
+ * selection contains one and only one element. Thus no parameter is passed
+ * through the command.
+ */
+public class AddFolderNode {
+ @Execute
+ public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart part, ESelectionService selectionService) {
+ List<?> selection = (List<?>) selectionService.getSelection();
+ JcrBrowserView view = (JcrBrowserView) part.getObject();
+
+ if (selection != null && selection.size() == 1) {
+ TreeParent treeParentNode = null;
+ Node jcrParentNode = null;
+ Object obj = selection.get(0);
+
+ if (obj instanceof SingleJcrNodeElem) {
+ treeParentNode = (TreeParent) obj;
+ jcrParentNode = ((SingleJcrNodeElem) treeParentNode).getNode();
+ } else if (obj instanceof WorkspaceElem) {
+ treeParentNode = (TreeParent) obj;
+ jcrParentNode = ((WorkspaceElem) treeParentNode).getRootNode();
+ } else
+ return;
+
+ String folderName = SingleValue.ask("Folder name", "Enter folder name");
+ if (folderName != null) {
+ try {
+ jcrParentNode.addNode(folderName, NodeType.NT_FOLDER);
+ jcrParentNode.getSession().save();
+ view.nodeAdded(treeParentNode);
+ } catch (RepositoryException e) {
+ ErrorFeedback.show("Cannot create folder " + folderName + " under " + treeParentNode, e);
+ }
+ }
+ } else {
+ // ErrorFeedback.show(WorkbenchUiPlugin
+ // .getMessage("errorUnvalidNtFolderNodeType"));
+ ErrorFeedback.show("Invalid NT folder node type");
+ }
+ }
+
+}