/** Initializes the call button. */
  private void initCallButton() {
    List<ProtocolProviderService> telephonyProviders = CallManager.getTelephonyProviders();

    if (telephonyProviders != null && telephonyProviders.size() > 0) {
      if (callButton.getParent() != null) return;

      callButton.setAlignmentX(JButton.CENTER_ALIGNMENT);

      callButton.setMnemonic(
          GuiActivator.getResources().getI18nMnemonic("service.gui.CALL_CONTACT"));

      buttonPanel.add(callButton);

      callButton.addActionListener(
          new ActionListener() {
            public void actionPerformed(ActionEvent e) {
              String searchText = parentWindow.getCurrentSearchText();

              if (searchText == null) return;

              CallManager.createCall(searchText, callButton);
            }
          });
    } else {
      buttonPanel.remove(callButton);
    }
  }
  private void initAddContactButton() {
    addButton.setAlignmentX(JButton.CENTER_ALIGNMENT);

    addButton.setMnemonic(GuiActivator.getResources().getI18nMnemonic("service.gui.ADD_CONTACT"));

    buttonPanel.add(addButton);

    addButton.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            AddContactDialog dialog = new AddContactDialog(parentWindow);

            dialog.setContactAddress(parentWindow.getCurrentSearchText());
            dialog.setVisible(true);
          }
        });
  }
  /** Initializes the call button. */
  private void initSMSButton() {
    if (!parentWindow.hasOperationSet(OperationSetSmsMessaging.class)) return;

    smsButton = new JButton(GuiActivator.getResources().getI18NString("service.gui.SEND_SMS"));

    smsButton.setIcon(GuiActivator.getResources().getImage("service.gui.icons.SMS_BUTTON_ICON"));

    buttonPanel.add(smsButton);

    smsButton.addActionListener(
        new ActionListener() {
          @Override
          public void actionPerformed(ActionEvent e) {
            final String searchText = parentWindow.getCurrentSearchText();

            if (searchText == null) return;

            SMSManager.sendSMS(smsButton, searchText);
          }
        });
  }
  /**
   * Creates the <tt>UnknownContactPanel</tt> by specifying the parent window.
   *
   * @param window the parent window
   */
  public UnknownContactPanel(MainFrame window) {
    super(new BorderLayout());

    this.parentWindow = window;

    TransparentPanel mainPanel = new TransparentPanel(new BorderLayout());

    this.add(mainPanel, BorderLayout.NORTH);

    if (!ConfigurationUtils.isAddContactDisabled()) {
      initAddContactButton();
    }

    initCallButton();

    initSMSButton();

    initTextArea();
    mainPanel.add(textArea, BorderLayout.CENTER);

    if (callButton.getParent() != null) {
      textArea.setText(
          GuiActivator.getResources()
              .getI18NString(
                  "service.gui.NO_CONTACTS_FOUND",
                  new String[] {'"' + parentWindow.getCurrentSearchText() + '"'}));
    } else {
      textArea.setText(
          GuiActivator.getResources().getI18NString("service.gui.NO_CONTACTS_FOUND_SHORT"));
    }

    if (buttonPanel.getComponentCount() > 0) {
      TransparentPanel southPanel = new TransparentPanel(new FlowLayout(FlowLayout.CENTER));
      southPanel.add(buttonPanel);

      mainPanel.add(southPanel, BorderLayout.SOUTH);
    }

    loadSkin();
  }
  /**
   * Updates the call button appearance and shows/hides this panel.
   *
   * @param isVisible indicates if this panel should be shown or hidden
   */
  @Override
  public void setVisible(boolean isVisible) {
    if (isVisible) initCallButton();

    super.setVisible(isVisible);
  }
  /**
   * Constructs a X509 certificate panel.
   *
   * @param certificates <tt>X509Certificate</tt> objects
   */
  public X509CertificatePanel(Certificate[] certificates) {
    setLayout(new BorderLayout(5, 5));

    // Certificate chain list
    TransparentPanel topPanel = new TransparentPanel(new BorderLayout());
    topPanel.add(
        new JLabel(
            "<html><body><b>"
                + R.getI18NString("service.gui.CERT_INFO_CHAIN")
                + "</b></body></html>"),
        BorderLayout.NORTH);

    DefaultMutableTreeNode top = new DefaultMutableTreeNode();
    DefaultMutableTreeNode previous = top;
    for (int i = certificates.length - 1; i >= 0; i--) {
      Certificate cert = certificates[i];
      DefaultMutableTreeNode next = new DefaultMutableTreeNode(cert);
      previous.add(next);
      previous = next;
    }
    JTree tree = new JTree(top);
    tree.setBorder(new BevelBorder(BevelBorder.LOWERED));
    tree.setRootVisible(false);
    tree.setExpandsSelectedPaths(true);
    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
    tree.setCellRenderer(
        new DefaultTreeCellRenderer() {

          @Override
          public Component getTreeCellRendererComponent(
              JTree tree,
              Object value,
              boolean sel,
              boolean expanded,
              boolean leaf,
              int row,
              boolean hasFocus) {
            JLabel component =
                (JLabel)
                    super.getTreeCellRendererComponent(
                        tree, value, sel, expanded, leaf, row, hasFocus);
            if (value instanceof DefaultMutableTreeNode) {
              Object o = ((DefaultMutableTreeNode) value).getUserObject();
              if (o instanceof X509Certificate) {
                component.setText(getSimplifiedName((X509Certificate) o));
              } else {
                // We don't know how to represent this certificate type,
                // let's use the first 20 characters
                String text = o.toString();
                if (text.length() > 20) {
                  text = text.substring(0, 20);
                }
                component.setText(text);
              }
            }
            return component;
          }
        });
    tree.getSelectionModel()
        .addTreeSelectionListener(
            new TreeSelectionListener() {

              @Override
              public void valueChanged(TreeSelectionEvent e) {
                valueChangedPerformed(e);
              }
            });
    tree.setSelectionPath(
        new TreePath((((DefaultTreeModel) tree.getModel()).getPathToRoot(previous))));
    topPanel.add(tree, BorderLayout.CENTER);

    add(topPanel, BorderLayout.NORTH);

    // Certificate details pane
    Caret caret = infoTextPane.getCaret();
    if (caret instanceof DefaultCaret) {
      ((DefaultCaret) caret).setUpdatePolicy(DefaultCaret.NEVER_UPDATE);
    }

    /*
     * Make JEditorPane respect our default font because we will be using it
     * to just display text.
     */
    infoTextPane.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, true);

    infoTextPane.setOpaque(false);
    infoTextPane.setEditable(false);
    infoTextPane.setContentType("text/html");
    infoTextPane.setText(toString(certificates[0]));

    final JScrollPane certScroll = new JScrollPane(infoTextPane);
    certScroll.setPreferredSize(new Dimension(300, 500));
    add(certScroll, BorderLayout.CENTER);
  }