Prevent deletion of the last node.

This fixes #183.

diff --git a/src/de/todesbaum/jsite/gui/NodeManagerPage.java b/src/de/todesbaum/jsite/gui/NodeManagerPage.java
index 951a912..0f38a55 100644 (file)
--- a/src/de/todesbaum/jsite/gui/NodeManagerPage.java
+++ b/src/de/todesbaum/jsite/gui/NodeManagerPage.java
@@ -331,6 +331,7 @@ public class NodeManagerPage extends TWizardPage implements ListSelectionListene
        private void addNode() {
                Node node = new Node("localhost", 9481, I18n.getMessage("jsite.node-manager.new-node"));
                nodeListModel.addElement(node);
+               deleteNodeAction.setEnabled(nodeListModel.size() > 1);
                wizard.setNextEnabled(true);
                fireNodesUpdated(getNodes());
        }
@@ -349,6 +350,7 @@ public class NodeManagerPage extends TWizardPage implements ListSelectionListene
                nodeListModel.removeElement(node);
                nodeList.repaint();
                fireNodesUpdated(getNodes());
+               deleteNodeAction.setEnabled(nodeListModel.size() > 1);
                wizard.setNextEnabled(nodeListModel.size() > 0);
        }
 
@@ -370,7 +372,7 @@ public class NodeManagerPage extends TWizardPage implements ListSelectionListene
                                nodeNameTextField.setEnabled(enabled);
                                nodeHostnameTextField.setEnabled(enabled);
                                nodePortSpinner.setEnabled(enabled);
-                               deleteNodeAction.setEnabled(enabled);
+                               deleteNodeAction.setEnabled(enabled && (nodeListModel.size() > 1));
                                if (enabled) {
                                        nodeNameTextField.setText(node.getName());
                                        nodeHostnameTextField.setText(node.getHostname());