Show dialog box with latest version information.

diff --git a/src/de/todesbaum/jsite/main/Main.java b/src/de/todesbaum/jsite/main/Main.java
index b760a79..cc65c3d 100644 (file)
--- a/src/de/todesbaum/jsite/main/Main.java
+++ b/src/de/todesbaum/jsite/main/Main.java
@@ -208,8 +208,9 @@ public class Main implements ActionListener, ListSelectionListener, WizardListen
                        /**
                         * {@inheritDoc}
                         */
+                       @SuppressWarnings("synthetic-access")
                        public void actionPerformed(ActionEvent actionEvent) {
-                               /* TODO */
+                               showLatestUpdate();
                        }
                };
                aboutAction = new AbstractAction(I18n.getMessage("jsite.menu.help.about")) {
@@ -404,6 +405,22 @@ public class Main implements ActionListener, ListSelectionListener, WizardListen
                configuration.setLocale(supportedLocale);
        }
 
+       /**
+        * Shows a dialog box that shows the last version that was found by the
+        * {@link UpdateChecker}.
+        */
+       private void showLatestUpdate() {
+               Version latestVersion = updateChecker.getLatestVersion();
+               int versionDifference = latestVersion.compareTo(VERSION);
+               if (versionDifference > 0) {
+                       JOptionPane.showMessageDialog(wizard, MessageFormat.format(I18n.getMessage("jsite.update-checker.latest-version.newer.message"), VERSION, latestVersion), I18n.getMessage("jsite.update-checker.latest-version.title"), JOptionPane.INFORMATION_MESSAGE);
+               } else if (versionDifference < 0) {
+                       JOptionPane.showMessageDialog(wizard, MessageFormat.format(I18n.getMessage("jsite.update-checker.latest-version.older.message"), VERSION, latestVersion), I18n.getMessage("jsite.update-checker.latest-version.title"), JOptionPane.INFORMATION_MESSAGE);
+               } else {
+                       JOptionPane.showMessageDialog(wizard, MessageFormat.format(I18n.getMessage("jsite.update-checker.latest-version.okay.message"), VERSION, latestVersion), I18n.getMessage("jsite.update-checker.latest-version.title"), JOptionPane.INFORMATION_MESSAGE);
+               }
+       }
+
        //
        // INTERFACE ListSelectionListener
        //