src/de/todesbaum/jsite/gui/UpdateChecker.java

   1 /*
   2  * jSite-remote - UpdateChecker.java -
   3  * Copyright © 2008 David Roden
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 package de.todesbaum.jsite.gui;
  21
  22 import java.awt.BorderLayout;
  23 import java.awt.event.ActionEvent;
  24
  25 import javax.swing.AbstractAction;
  26 import javax.swing.Action;
  27 import javax.swing.JButton;
  28 import javax.swing.JFrame;
  29 import javax.swing.JLabel;
  30 import javax.swing.JOptionPane;
  31 import javax.swing.JPanel;
  32 import javax.swing.JProgressBar;
  33
  34 import de.todesbaum.jsite.application.Freenet7Interface;
  35 import de.todesbaum.jsite.i18n.I18n;
  36 import de.todesbaum.jsite.i18n.I18nContainer;
  37
  38 /**
  39  * Checks for newer versions of jSite.
  40  *
  41  * @author David ‘Bombe’ Roden &lt;bombe@freenetproject.org&gt;
  42  */
  43 public class UpdateChecker {
  44
  45         /** The URL for update checks. */
  46         @SuppressWarnings("unused")
  47         private static final String UPDATE_KEY = "USK@e3myoFyp5avg6WYN16ImHri6J7Nj8980Fm~aQe4EX1U,QvbWT0ImE0TwLODTl7EoJx2NBnwDxTbLTE6zkB-eGPs,AQACAAE/jSite/0/currentVersion.txt";
  48
  49         /** The parent of the dialog. */
  50         @SuppressWarnings("unused")
  51         private final JFrame parent;
  52
  53         /** The freenet interface. */
  54         @SuppressWarnings("unused")
  55         private final Freenet7Interface freenetInterface;
  56
  57         /** The cancel action. */
  58         @SuppressWarnings("unused")
  59         private Action cancelAction;
  60
  61         /**
  62          * Creates a new update checker that uses the given frame as its parent and
  63          * communications via the given freenet interface.
  64          *
  65          * @param parent
  66          *            The parent of the dialog
  67          * @param freenetInterface
  68          *            The freenet interface
  69          */
  70         public UpdateChecker(JFrame parent, Freenet7Interface freenetInterface) {
  71                 this.parent = parent;
  72                 this.freenetInterface = freenetInterface;
  73                 initActions();
  74         }
  75
  76         //
  77         // ACTIONS
  78         //
  79
  80         /**
  81          * Checks for updates, showing a dialog with an indeterminate progress bar.
  82          */
  83         public void checkForUpdates() {
  84                 showBusyDialog();
  85         }
  86
  87         //
  88         // PRIVATE METHODS
  89         //
  90
  91         /**
  92          * Initializes all actions.
  93          */
  94         private void initActions() {
  95                 cancelAction = new AbstractAction(I18n.getMessage("")) {
  96
  97                         /**
  98                          * {@inheritDoc}
  99                          */
 100                         public void actionPerformed(ActionEvent actionEvent) {
 101                                 /* TODO */
 102                         }
 103                 };
 104         }
 105
 106         /**
 107          * Shows a “please wait” dialog.
 108          */
 109         private void showBusyDialog() {
 110                 new Thread(new Runnable() {
 111
 112                         @SuppressWarnings("synthetic-access")
 113                         public void run() {
 114                                 BusyPanel busyPanel = new BusyPanel();
 115                                 JButton cancelButton = new JButton(cancelAction);
 116                                 JOptionPane.showOptionDialog(parent, busyPanel, I18n.getMessage(""), 0, JOptionPane.INFORMATION_MESSAGE, null, new Object[] { cancelButton }, cancelButton);
 117                         }
 118                 }).start();
 119         }
 120
 121         /**
 122          * A panel that shows a busy progress bar and a “please wait” message.
 123          *
 124          * @author David ‘Bombe’ Roden &lt;bombe@freenetproject.org&gt;
 125          */
 126         private class BusyPanel extends JPanel {
 127
 128                 /**
 129                  * Creates a new busy panel.
 130                  */
 131                 public BusyPanel() {
 132                         super(new BorderLayout(12, 12));
 133                         initComponents();
 134                 }
 135
 136                 //
 137                 // PRIVATE METHODS
 138                 //
 139
 140                 /**
 141                  * Initializes all components of this panel.
 142                  */
 143                 private void initComponents() {
 144                         final JLabel label = new JLabel(I18n.getMessage("")); /* TODO */
 145                         JProgressBar progressBar = new JProgressBar();
 146                         progressBar.setIndeterminate(true);
 147
 148                         add(label, BorderLayout.PAGE_START);
 149                         add(progressBar, BorderLayout.PAGE_END);
 150
 151                         I18nContainer.getInstance().registerRunnable(new Runnable() {
 152
 153                                 /**
 154                                  * {@inheritDoc}
 155                                  */
 156                                 public void run() {
 157                                         label.setText(I18n.getMessage("")); /* TODO */
 158                                 }
 159                         });
 160                 }
 161
 162         }
 163
 164 }