commands/AddFolderNode.java

   1 package org.argeo.cms.ui.workbench.internal.jcr.commands;
   2
   3 import javax.jcr.Node;
   4 import javax.jcr.RepositoryException;
   5 import javax.jcr.nodetype.NodeType;
   6
   7 import org.argeo.cms.ui.jcr.model.SingleJcrNodeElem;
   8 import org.argeo.cms.ui.jcr.model.WorkspaceElem;
   9 import org.argeo.cms.ui.workbench.WorkbenchUiPlugin;
  10 import org.argeo.cms.ui.workbench.jcr.JcrBrowserView;
  11 import org.argeo.eclipse.ui.TreeParent;
  12 import org.argeo.eclipse.ui.dialogs.ErrorFeedback;
  13 import org.argeo.eclipse.ui.dialogs.SingleValue;
  14 import org.eclipse.core.commands.AbstractHandler;
  15 import org.eclipse.core.commands.ExecutionEvent;
  16 import org.eclipse.core.commands.ExecutionException;
  17 import org.eclipse.jface.viewers.ISelection;
  18 import org.eclipse.jface.viewers.IStructuredSelection;
  19 import org.eclipse.ui.handlers.HandlerUtil;
  20
  21 /**
  22  * Adds a node of type nt:folder, only on {@link SingleJcrNodeElem} and
  23  * {@link WorkspaceElem} TreeObject types.
  24  *
  25  * This handler assumes that a selection provider is available and picks only
  26  * first selected item. It is UI's job to enable the command only when the
  27  * selection contains one and only one element. Thus no parameter is passed
  28  * through the command.
  29  */
  30 public class AddFolderNode extends AbstractHandler {
  31
  32         public final static String ID = WorkbenchUiPlugin.PLUGIN_ID
  33                         + ".addFolderNode";
  34
  35         public Object execute(ExecutionEvent event) throws ExecutionException {
  36
  37                 ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
  38                                 .getActivePage().getSelection();
  39
  40                 JcrBrowserView view = (JcrBrowserView) HandlerUtil
  41                                 .getActiveWorkbenchWindow(event).getActivePage()
  42                                 .findView(HandlerUtil.getActivePartId(event));
  43
  44                 if (selection != null && !selection.isEmpty()
  45                                 && selection instanceof IStructuredSelection) {
  46                         Object obj = ((IStructuredSelection) selection).getFirstElement();
  47                         TreeParent treeParentNode = null;
  48                         Node jcrParentNode = null;
  49
  50                         if (obj instanceof SingleJcrNodeElem) {
  51                                 treeParentNode = (TreeParent) obj;
  52                                 jcrParentNode = ((SingleJcrNodeElem) treeParentNode).getNode();
  53                         } else if (obj instanceof WorkspaceElem) {
  54                                 treeParentNode = (TreeParent) obj;
  55                                 jcrParentNode = ((WorkspaceElem) treeParentNode).getRootNode();
  56                         } else
  57                                 return null;
  58
  59                         String folderName = SingleValue.ask("Folder name",
  60                                         "Enter folder name");
  61                         if (folderName != null) {
  62                                 try {
  63                                         jcrParentNode.addNode(folderName, NodeType.NT_FOLDER);
  64                                         jcrParentNode.getSession().save();
  65                                         view.nodeAdded(treeParentNode);
  66                                 } catch (RepositoryException e) {
  67                                         ErrorFeedback.show("Cannot create folder " + folderName
  68                                                         + " under " + treeParentNode, e);
  69                                 }
  70                         }
  71                 } else {
  72                         ErrorFeedback.show(WorkbenchUiPlugin
  73                                         .getMessage("errorUnvalidNtFolderNodeType"));
  74                 }
  75                 return null;
  76         }
  77 }