/**
   * Resets the rollover state of all rollover components in the current cell except the component
   * given as a parameter.
   *
   * @param excludeComponent the component to exclude from the reset
   */
  public void resetRolloverState(Component excludeComponent) {
    if (!chatButton.equals(excludeComponent)) chatButton.getModel().setRollover(false);

    if (!callButton.equals(excludeComponent)) callButton.getModel().setRollover(false);

    if (!callVideoButton.equals(excludeComponent)) callVideoButton.getModel().setRollover(false);

    if (!desktopSharingButton.equals(excludeComponent))
      desktopSharingButton.getModel().setRollover(false);

    if (!addContactButton.equals(excludeComponent)) addContactButton.getModel().setRollover(false);

    if (customActionButtons != null) {
      Iterator<JButton> buttonsIter = customActionButtons.iterator();
      while (buttonsIter.hasNext()) {
        JButton button = buttonsIter.next();

        if (!button.equals(excludeComponent)) button.getModel().setRollover(false);
      }
    }

    if (customActionButtonsUIGroup != null) {
      Iterator<JButton> buttonsIter = customActionButtonsUIGroup.iterator();
      while (buttonsIter.hasNext()) {
        JButton button = buttonsIter.next();

        if (!button.equals(excludeComponent)) button.getModel().setRollover(false);
      }
    }
  }
  /**
   * Handles buttons action events.
   *
   * @param evt the <tt>ActionEvent</tt> that notified us
   */
  public void actionPerformed(ActionEvent evt) {
    JButton sourceButton = (JButton) evt.getSource();

    if (sourceButton.equals(openFileButton)) {
      this.openFile(downloadFile);
    } else if (sourceButton.equals(openFolderButton)) {
      try {
        File downloadDir = GuiActivator.getFileAccessService().getDefaultDownloadDirectory();

        GuiActivator.getDesktopService().open(downloadDir);
      } catch (IllegalArgumentException e) {
        if (logger.isDebugEnabled()) logger.debug("Unable to open folder.", e);

        this.showErrorMessage(resources.getI18NString("service.gui.FOLDER_DOES_NOT_EXIST"));
      } catch (NullPointerException e) {
        if (logger.isDebugEnabled()) logger.debug("Unable to open folder.", e);

        this.showErrorMessage(resources.getI18NString("service.gui.FOLDER_DOES_NOT_EXIST"));
      } catch (UnsupportedOperationException e) {
        if (logger.isDebugEnabled()) logger.debug("Unable to open folder.", e);

        this.showErrorMessage(resources.getI18NString("service.gui.FILE_OPEN_NOT_SUPPORTED"));
      } catch (SecurityException e) {
        if (logger.isDebugEnabled()) logger.debug("Unable to open folder.", e);

        this.showErrorMessage(resources.getI18NString("service.gui.FOLDER_OPEN_NO_PERMISSION"));
      } catch (IOException e) {
        if (logger.isDebugEnabled()) logger.debug("Unable to open folder.", e);

        this.showErrorMessage(resources.getI18NString("service.gui.FOLDER_OPEN_NO_APPLICATION"));
      } catch (Exception e) {
        if (logger.isDebugEnabled()) logger.debug("Unable to open file.", e);

        this.showErrorMessage(resources.getI18NString("service.gui.FOLDER_OPEN_FAILED"));
      }
    } else if (sourceButton.equals(cancelButton)) {
      if (fileTransfer != null) fileTransfer.cancel();
    }
  }
  /**
   * Saves all configuration settings when the "Save" button is pressed.
   *
   * @param e the <tt>ActionEvent</tt> that notified us of the button action
   */
  public void actionPerformed(ActionEvent e) {
    JButton button = (JButton) e.getSource();

    if (button.equals(saveButton)) {
      Iterator<ChatRoomConfigurationFormField> configurationSet = configForm.getConfigurationSet();

      while (configurationSet.hasNext()) {
        ChatRoomConfigurationFormField formField = configurationSet.next();

        // If the field is of type fixed the user could not change it,
        // so we skip it.
        if (formField.getType().equals(ChatRoomConfigurationFormField.TYPE_TEXT_FIXED)) continue;

        JComponent c = uiFieldsTable.get(formField.getName());

        if (c instanceof JTextComponent) {
          String newValue = ((JTextComponent) c).getText();

          if (formField.getType().equals(ChatRoomConfigurationFormField.TYPE_ID_MULTI)) {
            // extract values
            StringTokenizer idTokens =
                new StringTokenizer(newValue, System.getProperty("line.separator"));
            while (idTokens.hasMoreTokens()) {
              formField.addValue(idTokens.nextToken());
            }
          } else formField.addValue(newValue);
        } else if (c instanceof AbstractButton) {
          boolean isSelected = ((AbstractButton) c).isSelected();

          formField.addValue(isSelected);
        } else if (c instanceof JComboBox) {
          Object selectedObject = ((JComboBox) c).getSelectedItem();

          formField.addValue(selectedObject);
        } else if (c instanceof JPanel) {
          Component[] components = c.getComponents();

          for (Component comp : components) {
            if (!(comp instanceof JCheckBox)) continue;

            JCheckBox checkBox = (JCheckBox) comp;

            formField.addValue(checkBox.getText());
          }
        }
      }

      new Thread() {
        @Override
        public void run() {
          try {
            configForm.submit();
          } catch (Exception e) {
            new ErrorDialog(
                    ChatRoomConfigurationWindow.this,
                    GuiActivator.getResources().getI18NString("service.gui.ERROR"),
                    GuiActivator.getResources()
                        .getI18NString("service.gui.CHAT_ROOM_CONFIGURATION_SUBMIT_FAILED"),
                    e)
                .showDialog();
          }
        }
      }.start();
    }

    this.dispose();
  }