/*

* Copyright (c) 2000 - 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

 *

*/

package com.nokia.epdt.plugins.s60.securityconf;

/* java.awt */

import java.awt.Color;

import java.awt.SystemColor;

import java.awt.BorderLayout;

import java.awt.GridBagLayout;

import java.awt.GridBagConstraints;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

/* javax.swing */

import javax.swing.JTable;

import javax.swing.JPanel;

import javax.swing.JComboBox;

import javax.swing.JRadioButton;

import javax.swing.JScrollPane;

import javax.swing.ButtonGroup;

import javax.swing.DefaultCellEditor;

import javax.swing.border.EmptyBorder;

import javax.swing.table.TableColumn;

/* com.nokia.wtk.util.gui */

import com.nokia.wtk.util.gui.BorderPanel;

/**

 * Security configuration UI class, main panel in the view.

 */

class SecConfMainPanel extends JPanel {

    private static final int GAP = 6;

    // Domain Selection combo

    private JComboBox jDomainCombo;

    // Permission bindings (settings) table

    private JTable jBindingsTable;

    // Data model for jBindingsTable

    private PermTableModel permTableModel;

    private SecurityConfPlugin parentPlugin;

    private SecConfModel secConfModel;

    private ProtectionDomain[] domains;

    private static Color TABLE_ACTIVE_BGND = SystemColor.window;

    private static Color TABLE_INACTIVE_BGND = SystemColor.control;

    /**

     * This is a constructor. In case if you haven't noticed :)

     */

    SecConfMainPanel(SecurityConfPlugin aParentPlugin) {

        super(new GridBagLayout());

        parentPlugin = aParentPlugin;

        secConfModel = parentPlugin.getSecConfModel();

        domains = secConfModel.getProtectionDomains(false);

        permTableModel = new PermTableModel(parentPlugin);

        // Domain combo box initialization

        jDomainCombo = new JComboBox(domains);

        jDomainCombo.setSelectedItem(secConfModel.getSelectedDomain());

        JRadioButton realLifeRadio = new JRadioButton(

            "Run MIDlets within security domain specified by their certificates");

        JRadioButton emulatedRadio = new JRadioButton(

            "Run MIDlets within the following domain:");

        ButtonGroup bg = new ButtonGroup();

        bg.add(realLifeRadio);

        bg.add(emulatedRadio);

        if (secConfModel.isEmulatedSecurityMode()) {

            realLifeRadio.setSelected(false);

            emulatedRadio.setSelected(true);

            jDomainCombo.setEnabled(true);

        } else {

            realLifeRadio.setSelected(true);

            emulatedRadio.setSelected(false);

            jDomainCombo.setEnabled(false);

        }

        jDomainCombo.addActionListener(new DomainSelectionListener());

        realLifeRadio.addActionListener(new RealLifeRadioListener());

        emulatedRadio.addActionListener(new EmulatedRadioListener());

        BorderPanel bp = new BorderPanel(emulatedRadio);

        bp.getContentPanel().add(createConfigurationsPanel());

        ProtectionDomain d = secConfModel.getSelectedDomain();

        if (d != null && d.isUserDefined() && secConfModel.isEmulatedSecurityMode()) {

            jBindingsTable.setEnabled(true);

            jBindingsTable.setBackground(TABLE_ACTIVE_BGND);

        } else {

            jBindingsTable.setEnabled(false);

            jBindingsTable.setBackground(TABLE_INACTIVE_BGND);

        }

        // We could use BorderLayout and this:

        //

        //   add(getJRealLifeRadio(), BorderLayout.NORTH);

        //   add(bp, BorderLayout.CENTER);

        //

        // would be ALMOST perfect, except that radio buttons wouldn't be

        // aligned horizontally. With GridBagLayout we can manipulate insets

        // of each cell, which allows us to aligh the radio buttons. A little

        // bit more complicated, but looks better.

        GridBagConstraints gbc = new GridBagConstraints();

        gbc.weightx = 1.0;

        gbc.gridwidth = GridBagConstraints.REMAINDER;

        gbc.fill = GridBagConstraints.HORIZONTAL;

        gbc.anchor = GridBagConstraints.NORTH;

        gbc.insets.left = bp.getBorder().getBorderInsets(bp).left +

            BorderPanel.COMPONENT_INSET_H;

        add(realLifeRadio, gbc);

        gbc.weighty = 1.0;

        gbc.insets.left = 0;

        gbc.fill = GridBagConstraints.BOTH;

        gbc.gridheight = GridBagConstraints.REMAINDER;

        add(bp, gbc);

        // Final touches

        setBorder(new EmptyBorder(GAP,GAP,GAP,GAP));

        jBindingsTable.setPreferredScrollableViewportSize(

        jBindingsTable.getPreferredSize());

    }

    private JPanel createConfigurationsPanel() {

        jBindingsTable = new JTable(permTableModel);

        jBindingsTable.setShowGrid(true);

        jBindingsTable.getTableHeader().setReorderingAllowed(false);

        JComboBox permCombo = new JComboBox(new Permission [] {

            Permission.Allowed,

            Permission.Denied,

            Permission.Session,

            Permission.OneShot

        });

        TableColumn permColumn = jBindingsTable.getColumnModel().getColumn(1);

        permColumn.setCellEditor(new DefaultCellEditor(permCombo));

        jBindingsTable.setBackground(TABLE_ACTIVE_BGND);

        jBindingsTable.setAutoResizeMode(JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS);

        JPanel p = new JPanel(new BorderLayout(GAP, GAP));

        p.add(jDomainCombo, BorderLayout.NORTH);

        p.add(new JScrollPane(jBindingsTable), BorderLayout.CENTER);

        p.setBorder(new EmptyBorder(0,GAP,GAP,GAP));

        return p;

    }

    private class DomainSelectionListener implements ActionListener {

        public void actionPerformed(ActionEvent aEvent) {

            ProtectionDomain d = (ProtectionDomain)jDomainCombo.getSelectedItem();

            if (secConfModel.getSelectedDomain() != d) {

                // Selection has changed

                secConfModel.setSelectedDomain(d);

                parentPlugin.pluginModelChangedAction();

                // Notify table about the update

                permTableModel.fireTableDataChanged();

                jBindingsTable.getColumnModel().getColumn(1).

                    getCellEditor().cancelCellEditing();

                // If selected domain is editable and security is emulated

                if (d.isUserDefined() &&

                    secConfModel.isEmulatedSecurityMode()) {

                    jBindingsTable.setEnabled(true);

                    jBindingsTable.setBackground(TABLE_ACTIVE_BGND);

                } else {

                    jBindingsTable.setEnabled(false);

                    jBindingsTable.setBackground(TABLE_INACTIVE_BGND);

                }

            }

        }

    }

    private class RealLifeRadioListener implements ActionListener {

        public void actionPerformed(ActionEvent aEvent) {

            if (secConfModel.isEmulatedSecurityMode()) {

                // Radio button's state has changed

                secConfModel.setEmulatedSecurityMode(false);

                jDomainCombo.setEnabled(false);

                jBindingsTable.setEnabled(false);

                jBindingsTable.clearSelection();

                jBindingsTable.setBackground(TABLE_INACTIVE_BGND);

                jBindingsTable.getColumnModel().getColumn(1).

                    getCellEditor().cancelCellEditing();

                parentPlugin.pluginModelChangedAction();

            }

        }

    }

    private class EmulatedRadioListener implements ActionListener {

        public void actionPerformed(ActionEvent aEvent) {

            if (!secConfModel.isEmulatedSecurityMode()) {

                // Radio button's state has changed

                secConfModel.setEmulatedSecurityMode(true);

                jDomainCombo.setEnabled(true);

                ProtectionDomain d = secConfModel.getSelectedDomain();

                if (d != null && d.isUserDefined() &&

                    secConfModel.isEmulatedSecurityMode()) {

                    jBindingsTable.setEnabled(true);

                    jBindingsTable.setBackground(TABLE_ACTIVE_BGND);

                }

                parentPlugin.pluginModelChangedAction();

            }

        }

    }

}