server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/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.browser.NodeContentProvider;
  13 import org.argeo.jcr.ui.explorer.browser.RepositoryNode;
  14 import org.argeo.jcr.ui.explorer.browser.WorkspaceNode;
  15 import org.argeo.jcr.ui.explorer.editors.GenericNodeEditor;
  16 import org.argeo.jcr.ui.explorer.editors.GenericNodeEditorInput;
  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                         rpNode.login();
  50                         nodeViewer.refresh(obj);
  51                 } else if (obj instanceof WorkspaceNode) {
  52                         ((WorkspaceNode) obj).login();
  53                         nodeViewer.refresh(obj);
  54                 } else if (obj instanceof Node) {
  55                         Node node = (Node) obj;
  56                         try {
  57                                 if (node.isNodeType(NodeType.NT_FILE)) {
  58                                         // double click on a file node triggers its opening
  59                                         String name = node.getName();
  60                                         String id = node.getIdentifier();
  61
  62                                         // For the file provider to be able to browse the
  63                                         // various
  64                                         // repository.
  65                                         // TODO : enhanced that.
  66                                         ITreeContentProvider itcp = (ITreeContentProvider) nodeViewer
  67                                                         .getContentProvider();
  68                                         jfp.setRootNodes((Object[]) itcp.getElements(null));
  69                                         fileHandler.openFile(name, id);
  70                                 }
  71                                 GenericNodeEditorInput gnei = new GenericNodeEditorInput(node);
  72                                 JcrExplorerPlugin.getDefault().getWorkbench()
  73                                                 .getActiveWorkbenchWindow().getActivePage()
  74                                                 .openEditor(gnei, GenericNodeEditor.ID);
  75                         } catch (RepositoryException re) {
  76                                 throw new ArgeoException(
  77                                                 "Repository error while getting node info", re);
  78                         } catch (PartInitException pie) {
  79                                 throw new ArgeoException(
  80                                                 "Unexepected exception while opening node editor", pie);
  81                         }
  82                 }
  83         }
  84
  85         // Enhance this method
  86         private String getRepositoryAlias(Object element) {
  87                 NodeContentProvider ncp = (NodeContentProvider) nodeViewer
  88                                 .getContentProvider();
  89                 Object parent = element;
  90                 while (!(ncp.getParent(parent) instanceof RepositoryNode)
  91                                 && parent != null)
  92                         parent = ncp.getParent(parent);
  93                 return parent == null ? null : ((RepositoryNode) parent).getName();
  94         }
  95 }