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  *
  26  * Centralizes the management of double click on a NodeTreeViewer
  27  *
  28  */
  29 public class GenericNodeDoubleClickListener implements IDoubleClickListener {
  30
  31         private final static Log log = LogFactory
  32                         .getLog(GenericNodeDoubleClickListener.class);
  33
  34         private TreeViewer nodeViewer;
  35         private JcrFileProvider jfp;
  36         private FileHandler fileHandler;
  37
  38         public GenericNodeDoubleClickListener(TreeViewer nodeViewer) {
  39                 this.nodeViewer = nodeViewer;
  40                 jfp = new JcrFileProvider();
  41                 fileHandler = new FileHandler(jfp);
  42         }
  43
  44         public void doubleClick(DoubleClickEvent event) {
  45                 if (event.getSelection() == null || event.getSelection().isEmpty())
  46                         return;
  47                 Object obj = ((IStructuredSelection) event.getSelection())
  48                                 .getFirstElement();
  49                 if (obj instanceof RepositoryNode) {
  50                         RepositoryNode rpNode = (RepositoryNode) obj;
  51                         rpNode.login();
  52                         nodeViewer.refresh(obj);
  53                 } else if (obj instanceof WorkspaceNode) {
  54                         ((WorkspaceNode) obj).login();
  55                         nodeViewer.refresh(obj);
  56                 } else if (obj instanceof Node) {
  57                         Node node = (Node) obj;
  58                         try {
  59                                 if (node.isNodeType(NodeType.NT_FILE)) {
  60                                         // double click on a file node triggers its opening
  61                                         String name = node.getName();
  62                                         String id = node.getIdentifier();
  63
  64                                         // For the file provider to be able to browse the
  65                                         // various
  66                                         // repository.
  67                                         // TODO : enhanced that.
  68                                         ITreeContentProvider itcp = (ITreeContentProvider) nodeViewer
  69                                                         .getContentProvider();
  70                                         jfp.setRootNodes((Object[]) itcp.getElements(null));
  71                                         fileHandler.openFile(name, id);
  72                                 }
  73                                 GenericNodeEditorInput gnei = new GenericNodeEditorInput(node);
  74                                 JcrExplorerPlugin.getDefault().getWorkbench()
  75                                                 .getActiveWorkbenchWindow().getActivePage()
  76                                                 .openEditor(gnei, GenericNodeEditor.ID);
  77                         } catch (RepositoryException re) {
  78                                 throw new ArgeoException(
  79                                                 "Repository error while getting node info", re);
  80                         } catch (PartInitException pie) {
  81                                 throw new ArgeoException(
  82                                                 "Unexepected exception while opening node editor", pie);
  83                         }
  84                 }
  85         }
  86
  87         // Enhance this method
  88         private String getRepositoryAlias(Object element) {
  89                 NodeContentProvider ncp = (NodeContentProvider) nodeViewer
  90                                 .getContentProvider();
  91                 Object parent = element;
  92                 while (!(ncp.getParent(parent) instanceof RepositoryNode)
  93                                 && parent != null)
  94                         parent = ncp.getParent(parent);
  95                 return parent == null ? null : ((RepositoryNode) parent).getName();
  96         }
  97 }