server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/editors/ChildNodesPage.java

   1 package org.argeo.jcr.ui.explorer.editors;
   2
   3 import javax.jcr.Node;
   4
   5 import org.argeo.ArgeoException;
   6 import org.argeo.jcr.ui.explorer.JcrExplorerPlugin;
   7 import org.argeo.jcr.ui.explorer.browser.NodeLabelProvider;
   8 import org.argeo.jcr.ui.explorer.providers.SingleNodeAsTreeContentProvider;
   9 import org.argeo.jcr.ui.explorer.utils.GenericNodeDoubleClickListener;
  10 import org.eclipse.jface.viewers.ITreeContentProvider;
  11 import org.eclipse.jface.viewers.TreeViewer;
  12 import org.eclipse.swt.SWT;
  13 import org.eclipse.swt.layout.GridData;
  14 import org.eclipse.swt.layout.GridLayout;
  15 import org.eclipse.swt.widgets.Composite;
  16 import org.eclipse.ui.forms.IManagedForm;
  17 import org.eclipse.ui.forms.editor.FormEditor;
  18 import org.eclipse.ui.forms.editor.FormPage;
  19 import org.eclipse.ui.forms.widgets.ScrolledForm;
  20
  21 /**
  22  * List all childs of the current node and brings some browsing capabilities
  23  * accross the repository
  24  */
  25 public class ChildNodesPage extends FormPage {
  26         // private final static Log log = LogFactory.getLog(ChildNodesPage.class);
  27
  28         // business objects
  29         private Node currentNode;
  30
  31         // this page UI components
  32         private SingleNodeAsTreeContentProvider nodeContentProvider;
  33         private TreeViewer nodesViewer;
  34
  35         public ChildNodesPage(FormEditor editor, String title, Node currentNode) {
  36                 super(editor, "ChildNodesPage", title);
  37                 this.currentNode = currentNode;
  38         }
  39
  40         protected void createFormContent(IManagedForm managedForm) {
  41                 try {
  42                         ScrolledForm form = managedForm.getForm();
  43                         Composite body = form.getBody();
  44                         GridLayout twt = new GridLayout(1, false);
  45                         twt.marginWidth = twt.marginHeight = 0;
  46                         body.setLayout(twt);
  47                         if (!currentNode.hasNodes()) {
  48                                 managedForm.getToolkit().createLabel(body,
  49                                                 JcrExplorerPlugin.getMessage("warningNoChildNode"));
  50                         } else {
  51
  52                                 nodeContentProvider = new SingleNodeAsTreeContentProvider();
  53                                 nodesViewer = createNodeViewer(body, nodeContentProvider);
  54                                 nodesViewer.setInput(currentNode);
  55                         }
  56                 } catch (Exception e) {
  57                         throw new ArgeoException(
  58                                         "Unexpected error while creating child node page", e);
  59                 }
  60         }
  61
  62         protected TreeViewer createNodeViewer(Composite parent,
  63                         final ITreeContentProvider nodeContentProvider) {
  64
  65                 final TreeViewer tmpNodeViewer = new TreeViewer(parent, SWT.MULTI);
  66
  67                 tmpNodeViewer.getTree().setLayoutData(
  68                                 new GridData(SWT.FILL, SWT.FILL, true, true));
  69
  70                 tmpNodeViewer.setContentProvider(nodeContentProvider);
  71                 tmpNodeViewer.setLabelProvider(new NodeLabelProvider());
  72                 tmpNodeViewer
  73                                 .addDoubleClickListener(new GenericNodeDoubleClickListener(
  74                                                 tmpNodeViewer));
  75                 return tmpNodeViewer;
  76         }
  77 }