org.argeo.eclipse.ui.workbench/src/org/argeo/eclipse/ui/workbench/commands/AddFolderNode.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.eclipse.ui.workbench.commands;
  17
  18 import javax.jcr.Node;
  19 import javax.jcr.RepositoryException;
  20 import javax.jcr.nodetype.NodeType;
  21
  22 import org.argeo.eclipse.ui.TreeParent;
  23 import org.argeo.eclipse.ui.dialogs.ErrorFeedback;
  24 import org.argeo.eclipse.ui.dialogs.SingleValue;
  25 import org.argeo.eclipse.ui.workbench.WorkbenchUiPlugin;
  26 import org.argeo.eclipse.ui.workbench.internal.jcr.model.SingleJcrNodeElem;
  27 import org.argeo.eclipse.ui.workbench.internal.jcr.model.WorkspaceElem;
  28 import org.argeo.eclipse.ui.workbench.jcr.JcrBrowserView;
  29 import org.eclipse.core.commands.AbstractHandler;
  30 import org.eclipse.core.commands.ExecutionEvent;
  31 import org.eclipse.core.commands.ExecutionException;
  32 import org.eclipse.jface.viewers.ISelection;
  33 import org.eclipse.jface.viewers.IStructuredSelection;
  34 import org.eclipse.ui.handlers.HandlerUtil;
  35
  36 /**
  37  * Adds a node of type nt:folder, only on {@link SingleJcrNodeElem} and
  38  * {@link WorkspaceElem} TreeObject types.
  39  *
  40  * This handler assumes that a selection provider is available and picks only
  41  * first selected item. It is UI's job to enable the command only when the
  42  * selection contains one and only one element. Thus no parameter is passed
  43  * through the command.
  44  */
  45 public class AddFolderNode extends AbstractHandler {
  46
  47         public final static String ID = WorkbenchUiPlugin.ID + ".addFolderNode";
  48
  49         public Object execute(ExecutionEvent event) throws ExecutionException {
  50
  51                 ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
  52                                 .getActivePage().getSelection();
  53
  54                 JcrBrowserView view = (JcrBrowserView) HandlerUtil
  55                                 .getActiveWorkbenchWindow(event).getActivePage()
  56                                 .findView(HandlerUtil.getActivePartId(event));
  57
  58                 if (selection != null && !selection.isEmpty()
  59                                 && selection instanceof IStructuredSelection) {
  60                         Object obj = ((IStructuredSelection) selection).getFirstElement();
  61                         TreeParent treeParentNode = null;
  62                         Node jcrParentNode = null;
  63
  64                         if (obj instanceof SingleJcrNodeElem) {
  65                                 treeParentNode = (TreeParent) obj;
  66                                 jcrParentNode = ((SingleJcrNodeElem) treeParentNode).getNode();
  67                         } else if (obj instanceof WorkspaceElem) {
  68                                 treeParentNode = (TreeParent) obj;
  69                                 jcrParentNode = ((WorkspaceElem) treeParentNode).getRootNode();
  70                         } else
  71                                 return null;
  72
  73                         String folderName = SingleValue.ask("Folder name",
  74                                         "Enter folder name");
  75                         if (folderName != null) {
  76                                 try {
  77                                         jcrParentNode.addNode(folderName, NodeType.NT_FOLDER);
  78                                         jcrParentNode.getSession().save();
  79                                         view.nodeAdded(treeParentNode);
  80                                 } catch (RepositoryException e) {
  81                                         ErrorFeedback.show("Cannot create folder " + folderName
  82                                                         + " under " + treeParentNode, e);
  83                                 }
  84                         }
  85                 } else {
  86                         ErrorFeedback.show(WorkbenchUiPlugin
  87                                         .getMessage("errorUnvalidNtFolderNodeType"));
  88                 }
  89                 return null;
  90         }
  91 }