/*

 * Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package sun.tools.jconsole;

import java.util.List;

import java.awt.*;

import java.awt.event.*;

import java.util.*;

import javax.swing.*;

import javax.swing.border.*;

import javax.swing.event.*;

import javax.swing.plaf.basic.BasicRadioButtonUI;

import javax.swing.table.*;

import static java.awt.BorderLayout.*;

import static javax.swing.ListSelectionModel.*;

import static sun.tools.jconsole.Utilities.*;

@SuppressWarnings("serial")

public class ConnectDialog extends InternalDialog

                implements DocumentListener, FocusListener,

                           ItemListener, ListSelectionListener, KeyListener {

    private static final int COL_NAME = 0;

    private static final int COL_PID  = 1;

    JConsole jConsole;

    JTextField userNameTF, passwordTF;

    JRadioButton localRadioButton, remoteRadioButton;

    JLabel localMessageLabel, remoteMessageLabel;

    JTextField remoteTF;

    JButton connectButton, cancelButton;

    JPanel radioButtonPanel;

    private Icon mastheadIcon =

        new MastheadIcon(Messages.CONNECT_DIALOG_MASTHEAD_TITLE);

    private Color hintTextColor, disabledTableCellColor;

    // The table of managed VM (local process)

    JTable vmTable;

    ManagedVmTableModel vmModel = null;

    JScrollPane localTableScrollPane = null;

    private Action connectAction, cancelAction;

    public ConnectDialog(JConsole jConsole) {

        super(jConsole, Messages.CONNECT_DIALOG_TITLE, true);

        this.jConsole = jConsole;

        setAccessibleDescription(this,

                                 Messages.CONNECT_DIALOG_ACCESSIBLE_DESCRIPTION);

        setDefaultCloseOperation(HIDE_ON_CLOSE);

        setResizable(false);

        Container cp = (JComponent)getContentPane();

        radioButtonPanel = new JPanel(new BorderLayout(0, 12));

        radioButtonPanel.setBorder(new EmptyBorder(6, 12, 12, 12));

        ButtonGroup radioButtonGroup = new ButtonGroup();

        JPanel bottomPanel = new JPanel(new BorderLayout());

        statusBar = new JLabel(" ", JLabel.CENTER);

        setAccessibleName(statusBar,

                          Messages.CONNECT_DIALOG_STATUS_BAR_ACCESSIBLE_NAME);

        Font normalLabelFont = statusBar.getFont();

        Font boldLabelFont = normalLabelFont.deriveFont(Font.BOLD);

        Font smallLabelFont = normalLabelFont.deriveFont(normalLabelFont.getSize2D() - 1);

        JLabel mastheadLabel = new JLabel(mastheadIcon);

        setAccessibleName(mastheadLabel,

                          Messages.CONNECT_DIALOG_MASTHEAD_ACCESSIBLE_NAME);

        cp.add(mastheadLabel, NORTH);

        cp.add(radioButtonPanel, CENTER);

        cp.add(bottomPanel, SOUTH);

        createActions();

        remoteTF = new JTextField();

        remoteTF.addActionListener(connectAction);

        remoteTF.getDocument().addDocumentListener(this);

        remoteTF.addFocusListener(this);

        remoteTF.setPreferredSize(remoteTF.getPreferredSize());

        setAccessibleName(remoteTF,

                          Messages.REMOTE_PROCESS_TEXT_FIELD_ACCESSIBLE_NAME);

        //

        // If the VM supports the local attach mechanism (is: Sun

        // implementation) then the Local Process panel is created.

        //

        if (JConsole.isLocalAttachAvailable()) {

            vmModel = new ManagedVmTableModel();

            vmTable = new LocalTabJTable(vmModel);

            vmTable.setSelectionMode(SINGLE_SELECTION);

            vmTable.setPreferredScrollableViewportSize(new Dimension(400, 250));

            vmTable.setColumnSelectionAllowed(false);

            vmTable.addFocusListener(this);

            vmTable.getSelectionModel().addListSelectionListener(this);

            TableColumnModel columnModel = vmTable.getColumnModel();

            TableColumn pidColumn = columnModel.getColumn(COL_PID);

            pidColumn.setMaxWidth(getLabelWidth("9999999"));

            pidColumn.setResizable(false);

            TableColumn cmdLineColumn = columnModel.getColumn(COL_NAME);

            cmdLineColumn.setResizable(false);

            localRadioButton = new JRadioButton(Messages.LOCAL_PROCESS_COLON);

            localRadioButton.setMnemonic(Resources.getMnemonicInt(Messages.LOCAL_PROCESS_COLON));

            localRadioButton.setFont(boldLabelFont);

            localRadioButton.addItemListener(this);

            radioButtonGroup.add(localRadioButton);

            JPanel localPanel = new JPanel(new BorderLayout());

            JPanel localTablePanel = new JPanel(new BorderLayout());

            radioButtonPanel.add(localPanel, NORTH);

            localPanel.add(localRadioButton, NORTH);

            localPanel.add(new Padder(localRadioButton), LINE_START);

            localPanel.add(localTablePanel, CENTER);

            localTableScrollPane = new JScrollPane(vmTable);

            localTablePanel.add(localTableScrollPane, NORTH);

            localMessageLabel = new JLabel(" ");

            localMessageLabel.setFont(smallLabelFont);

            localMessageLabel.setForeground(hintTextColor);

            localTablePanel.add(localMessageLabel, SOUTH);

        }

        remoteRadioButton = new JRadioButton(Messages.REMOTE_PROCESS_COLON);

        remoteRadioButton.setMnemonic(Resources.getMnemonicInt(Messages.REMOTE_PROCESS_COLON));

        remoteRadioButton.setFont(boldLabelFont);

        radioButtonGroup.add(remoteRadioButton);

        JPanel remotePanel = new JPanel(new BorderLayout());

        if (localRadioButton != null) {

            remotePanel.add(remoteRadioButton, NORTH);

            remotePanel.add(new Padder(remoteRadioButton), LINE_START);

            Action nextRadioButtonAction =

                new AbstractAction("nextRadioButton") {

                    public void actionPerformed(ActionEvent ev) {

                        JRadioButton rb =

                            (ev.getSource() == localRadioButton) ? remoteRadioButton

                                                                 : localRadioButton;

                        rb.doClick();

                        rb.requestFocus();

                    }

                };

            localRadioButton.getActionMap().put("nextRadioButton", nextRadioButtonAction);

            remoteRadioButton.getActionMap().put("nextRadioButton", nextRadioButtonAction);

            localRadioButton.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0),

                                               "nextRadioButton");

            remoteRadioButton.getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0),

                                                "nextRadioButton");

        } else {

            JLabel remoteLabel = new JLabel(remoteRadioButton.getText());

            remoteLabel.setFont(boldLabelFont);

            remotePanel.add(remoteLabel, NORTH);

        }

        radioButtonPanel.add(remotePanel, SOUTH);

        JPanel remoteTFPanel = new JPanel(new BorderLayout());

        remotePanel.add(remoteTFPanel, CENTER);

        remoteTFPanel.add(remoteTF, NORTH);

        remoteMessageLabel = new JLabel("<html>" + Messages.REMOTE_TF_USAGE + "</html>");

        remoteMessageLabel.setFont(smallLabelFont);

        remoteMessageLabel.setForeground(hintTextColor);

        remoteTFPanel.add(remoteMessageLabel, CENTER);

        JPanel userPwdPanel = new JPanel(new FlowLayout(FlowLayout.LEADING, 0, 0));

        userPwdPanel.setBorder(new EmptyBorder(12, 0, 0, 0)); // top padding

        int tfWidth = JConsole.IS_WIN ? 12 : 8;

        userNameTF = new JTextField(tfWidth);

        userNameTF.addActionListener(connectAction);

        userNameTF.getDocument().addDocumentListener(this);

        userNameTF.addFocusListener(this);

        setAccessibleName(userNameTF,

            Messages.USERNAME_ACCESSIBLE_NAME);

        LabeledComponent lc;

        lc = new LabeledComponent(Messages.USERNAME_COLON_,

                                  Resources.getMnemonicInt(Messages.USERNAME_COLON_),

                                  userNameTF);

        lc.label.setFont(boldLabelFont);

        userPwdPanel.add(lc);

        passwordTF = new JPasswordField(tfWidth);

        // Heights differ, so fix here

        passwordTF.setPreferredSize(userNameTF.getPreferredSize());

        passwordTF.addActionListener(connectAction);

        passwordTF.getDocument().addDocumentListener(this);

        passwordTF.addFocusListener(this);

        setAccessibleName(passwordTF,

            Messages.PASSWORD_ACCESSIBLE_NAME);

        lc = new LabeledComponent(Messages.PASSWORD_COLON_,

                                  Resources.getMnemonicInt(Messages.PASSWORD_COLON_),

                                  passwordTF);

        lc.setBorder(new EmptyBorder(0, 12, 0, 0)); // Left padding

        lc.label.setFont(boldLabelFont);

        userPwdPanel.add(lc);

        remoteTFPanel.add(userPwdPanel, SOUTH);

        String connectButtonToolTipText =

            Messages.CONNECT_DIALOG_CONNECT_BUTTON_TOOLTIP;

        connectButton = new JButton(connectAction);

        connectButton.setToolTipText(connectButtonToolTipText);

        cancelButton = new JButton(cancelAction);

        JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.TRAILING));

        buttonPanel.setBorder(new EmptyBorder(12, 12, 2, 12));

        if (JConsole.IS_GTK) {

            buttonPanel.add(cancelButton);

            buttonPanel.add(connectButton);

        } else {

            buttonPanel.add(connectButton);

            buttonPanel.add(cancelButton);

        }

        bottomPanel.add(buttonPanel, NORTH);

        bottomPanel.add(statusBar, SOUTH);

        updateButtonStates();

        Utilities.updateTransparency(this);

    }

    public void revalidate() {

        // Adjust some colors

        Color disabledForeground = UIManager.getColor("Label.disabledForeground");

        if (disabledForeground == null) {

            // fall back for Nimbus that doesn't support 'Label.disabledForeground'

            disabledForeground = UIManager.getColor("Label.disabledText");

        }

        hintTextColor =

            ensureContrast(disabledForeground,

                           UIManager.getColor("Panel.background"));

        disabledTableCellColor =

            ensureContrast(new Color(0x808080),

                           UIManager.getColor("Table.background"));

        if (remoteMessageLabel != null) {

            remoteMessageLabel.setForeground(hintTextColor);

            // Update html color setting

            String colorStr =

                String.format("%06x", hintTextColor.getRGB() & 0xFFFFFF);

            remoteMessageLabel.setText("<html><font color=#" + colorStr + ">" +

                                       Messages.REMOTE_TF_USAGE);

        }

        if (localMessageLabel != null) {

            localMessageLabel.setForeground(hintTextColor);

            // Update html color setting

            valueChanged(null);

        }

        super.revalidate();

    }

    private void createActions() {

        connectAction = new AbstractAction(Messages.CONNECT) {

            /* init */ {

                putValue(Action.MNEMONIC_KEY, Resources.getMnemonicInt(Messages.CONNECT));

            }

            public void actionPerformed(ActionEvent ev) {

                if (!isEnabled() || !isVisible()) {

                    return;

                }

                setVisible(false);

                statusBar.setText("");

                if (remoteRadioButton.isSelected()) {

                    String txt = remoteTF.getText().trim();

                    String userName = userNameTF.getText().trim();

                    userName = userName.equals("") ? null : userName;

                    String password = passwordTF.getText();

                    password = password.equals("") ? null : password;

                    try {

                        if (txt.startsWith(JConsole.ROOT_URL)) {

                            String url = txt;

                            jConsole.addUrl(url, userName, password, false);

                            remoteTF.setText(JConsole.ROOT_URL);

                            return;

                        } else {

                            String host = remoteTF.getText().trim();

                            String port = "0";

                            int index = host.lastIndexOf(':');

                            if (index >= 0) {

                                port = host.substring(index + 1);

                                host = host.substring(0, index);

                            }

                            if (host.length() > 0 && port.length() > 0) {

                                int p = Integer.parseInt(port.trim());

                                jConsole.addHost(host, p, userName, password);

                                remoteTF.setText("");

                                userNameTF.setText("");

                                passwordTF.setText("");

                                return;

                            }

                        }

                    } catch (Exception ex) {

                        statusBar.setText(ex.toString());

                    }

                    setVisible(true);

                } else if (localRadioButton != null && localRadioButton.isSelected()) {

                    // Try to connect to selected VM. If a connection

                    // cannot be established for some reason (the process has

                    // terminated for example) then keep the dialog open showing

                    // the connect error.

                    //

                    int row = vmTable.getSelectedRow();

                    if (row >= 0) {

                        jConsole.addVmid(vmModel.vmAt(row));

                    }

                    refresh();

                }

            }

        };

        cancelAction = new AbstractAction(Messages.CANCEL) {

            public void actionPerformed(ActionEvent ev) {

                setVisible(false);

                statusBar.setText("");

            }

        };

    }

    // a label used solely for calculating the width

    private static JLabel tmpLabel = new JLabel();

    public static int getLabelWidth(String text) {

        tmpLabel.setText(text);

        return (int) tmpLabel.getPreferredSize().getWidth() + 1;

    }

    private class LocalTabJTable extends JTable {

        ManagedVmTableModel vmModel;

        Border rendererBorder = new EmptyBorder(0, 6, 0, 6);

        public LocalTabJTable(ManagedVmTableModel model) {

            super(model);

            this.vmModel = model;

            // Remove vertical lines, expect for GTK L&F.

            // (because GTK doesn't show header dividers)

            if (!JConsole.IS_GTK) {

                setShowVerticalLines(false);

                setIntercellSpacing(new Dimension(0, 1));

            }

            // Double-click handler

            addMouseListener(new MouseAdapter() {

                public void mouseClicked(MouseEvent evt) {

                    if (evt.getClickCount() == 2) {

                        connectButton.doClick();

                    }

                }

            });

            // Enter should call default action

            getActionMap().put("connect", connectAction);

            InputMap inputMap = getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);

            inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "connect");

        }

        public String getToolTipText(MouseEvent e) {

            String tip = null;

            java.awt.Point p = e.getPoint();

            int rowIndex = rowAtPoint(p);

            int colIndex = columnAtPoint(p);

            int realColumnIndex = convertColumnIndexToModel(colIndex);

            if (realColumnIndex == COL_NAME) {

                LocalVirtualMachine vmd = vmModel.vmAt(rowIndex);

                tip = vmd.toString();

            }

            return tip;

        }

        public TableCellRenderer getCellRenderer(int row, int column) {

            return new DefaultTableCellRenderer() {

                public Component getTableCellRendererComponent(JTable table,

                                                               Object value,

                                                               boolean isSelected,

                                                               boolean hasFocus,

                                                               int row,

                                                               int column) {

                    Component comp =

                        super.getTableCellRendererComponent(table, value, isSelected,

                                                            hasFocus, row, column);

                    if (!isSelected) {

                        LocalVirtualMachine lvm = vmModel.vmAt(row);

                        if (!lvm.isManageable() && !lvm.isAttachable()) {

                            comp.setForeground(disabledTableCellColor);

                        }

                    }

                    if (comp instanceof JLabel) {

                        JLabel label = (JLabel)comp;

                        label.setBorder(rendererBorder);

                        if (value instanceof Integer) {

                            label.setHorizontalAlignment(JLabel.RIGHT);

                        }

                    }

                    return comp;

                }

            };

        }

    }

    public void setConnectionParameters(String url,

                                        String host,

                                        int port,

                                        String userName,

                                        String password,

                                        String msg) {

        if ((url != null && url.length() > 0) ||

            (host != null && host.length() > 0 && port > 0)) {

            remoteRadioButton.setSelected(true);

            if (url != null && url.length() > 0) {

                remoteTF.setText(url);

            } else {

                remoteTF.setText(host+":"+port);

            }

            userNameTF.setText((userName != null) ? userName : "");

            passwordTF.setText((password != null) ? password : "");

            statusBar.setText((msg != null) ? msg : "");

            if (getPreferredSize().width > getWidth()) {

                pack();

            }

            remoteTF.requestFocus();

            remoteTF.selectAll();

        }

    }

    public void itemStateChanged(ItemEvent ev) {

        if (!localRadioButton.isSelected()) {

            vmTable.getSelectionModel().clearSelection();

        }

        updateButtonStates();

    }

    private void updateButtonStates() {

        boolean connectEnabled = false;

        if (remoteRadioButton.isSelected()) {

            connectEnabled = JConsole.isValidRemoteString(remoteTF.getText());

        } else if (localRadioButton != null && localRadioButton.isSelected()) {

            int row = vmTable.getSelectedRow();

            if (row >= 0) {

                LocalVirtualMachine lvm = vmModel.vmAt(row);

                connectEnabled = (lvm.isManageable() || lvm.isAttachable());

            }

        }

        connectAction.setEnabled(connectEnabled);

    }

    public void insertUpdate(DocumentEvent e) {

        updateButtonStates();

    }

    public void removeUpdate(DocumentEvent e) {

        updateButtonStates();

    }

    public void changedUpdate(DocumentEvent e) {

        updateButtonStates();

    }

    public void focusGained(FocusEvent e) {

        Object source = e.getSource();

        Component opposite = e.getOppositeComponent();

        if (!e.isTemporary() &&

            source instanceof JTextField &&