utils/GenericNodeDoubleClickListener.java

   1 package org.argeo.jcr.ui.explorer.utils;
   2
   3 import javax.jcr.Node;
   4 import javax.jcr.RepositoryException;
   5 import javax.jcr.nodetype.NodeType;
   6
   7 import org.apache.commons.logging.Log;
   8 import org.apache.commons.logging.LogFactory;
   9 import org.argeo.ArgeoException;
  10 import org.argeo.eclipse.ui.specific.FileHandler;
  11 import org.argeo.jcr.ui.explorer.JcrExplorerPlugin;
  12 import org.argeo.jcr.ui.explorer.editors.GenericNodeEditor;
  13 import org.argeo.jcr.ui.explorer.editors.GenericNodeEditorInput;
  14 import org.argeo.jcr.ui.explorer.model.RepositoryNode;
  15 import org.argeo.jcr.ui.explorer.model.SingleJcrNode;
  16 import org.argeo.jcr.ui.explorer.model.WorkspaceNode;
  17 import org.eclipse.jface.viewers.DoubleClickEvent;
  18 import org.eclipse.jface.viewers.IDoubleClickListener;
  19 import org.eclipse.jface.viewers.IStructuredSelection;
  20 import org.eclipse.jface.viewers.ITreeContentProvider;
  21 import org.eclipse.jface.viewers.TreeViewer;
  22 import org.eclipse.ui.PartInitException;
  23
  24 /**
  25  * Centralizes the management of double click on a NodeTreeViewer
  26  */
  27 public class GenericNodeDoubleClickListener implements IDoubleClickListener {
  28
  29         private final static Log log = LogFactory
  30                         .getLog(GenericNodeDoubleClickListener.class);
  31
  32         private TreeViewer nodeViewer;
  33         private JcrFileProvider jfp;
  34         private FileHandler fileHandler;
  35
  36         public GenericNodeDoubleClickListener(TreeViewer nodeViewer) {
  37                 this.nodeViewer = nodeViewer;
  38                 jfp = new JcrFileProvider();
  39                 fileHandler = new FileHandler(jfp);
  40         }
  41
  42         public void doubleClick(DoubleClickEvent event) {
  43                 if (event.getSelection() == null || event.getSelection().isEmpty())
  44                         return;
  45                 Object obj = ((IStructuredSelection) event.getSelection())
  46                                 .getFirstElement();
  47                 if (obj instanceof RepositoryNode) {
  48                         RepositoryNode rpNode = (RepositoryNode) obj;
  49                         if (rpNode.getChildren().length == 0) {
  50                                 rpNode.login();
  51                                 nodeViewer.refresh(obj);
  52                         }
  53                         // else do nothing
  54                 } else if (obj instanceof WorkspaceNode) {
  55                         ((WorkspaceNode) obj).login();
  56                         nodeViewer.refresh(obj);
  57                 } else if (obj instanceof SingleJcrNode) {
  58                         SingleJcrNode sjn = (SingleJcrNode) obj;
  59                         Node node = sjn.getNode();
  60                         try {
  61                                 if (node.isNodeType(NodeType.NT_FILE)) {
  62                                         // double click on a file node triggers its opening
  63                                         String name = node.getName();
  64                                         String id = node.getIdentifier();
  65
  66                                         // For the file provider to be able to browse the
  67                                         // various
  68                                         // repository.
  69                                         // TODO : enhanced that.
  70                                         ITreeContentProvider itcp = (ITreeContentProvider) nodeViewer
  71                                                         .getContentProvider();
  72                                         // jfp.setRootNodes((Object[]) itcp.getElements(null));
  73                                         fileHandler.openFile(name, id);
  74                                 }
  75                                 GenericNodeEditorInput gnei = new GenericNodeEditorInput(node);
  76                                 JcrExplorerPlugin.getDefault().getWorkbench()
  77                                                 .getActiveWorkbenchWindow().getActivePage()
  78                                                 .openEditor(gnei, GenericNodeEditor.ID);
  79                         } catch (RepositoryException re) {
  80                                 throw new ArgeoException(
  81                                                 "Repository error while getting node info", re);
  82                         } catch (PartInitException pie) {
  83                                 throw new ArgeoException(
  84                                                 "Unexepected exception while opening node editor", pie);
  85                         }
  86                 }
  87         }
  88 }