transcriptwindow.java.svn-base

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/**
 * $Revision: $
 * $Date: $
 *
 * Copyright (C) 2006 Jive Software. All rights reserved.
 *
 * This software is published under the terms of the GNU Lesser Public License (LGPL),
 * a copy of which is included in this distribution.
 */

package org.jivesoftware.spark.ui;

import org.jdesktop.swingx.calendar.DateUtils;
import org.jivesoftware.Spark;
import org.jivesoftware.resource.SparkRes;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.util.StringUtils;
import org.jivesoftware.smackx.packet.DelayInformation;
import org.jivesoftware.spark.SparkManager;
import org.jivesoftware.spark.plugin.ContextMenuListener;
import org.jivesoftware.spark.util.ModelUtil;
import org.jivesoftware.spark.util.log.Log;
import org.jivesoftware.sparkimpl.settings.local.LocalPreferences;
import org.jivesoftware.sparkimpl.settings.local.SettingsManager;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.JPopupMenu;
import javax.swing.KeyStroke;
import javax.swing.UIManager;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;

import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.datatransfer.StringSelection;
import java.awt.event.ActionEvent;
import java.awt.event.MouseEvent;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

/**
 * The <CODE>TranscriptWindow</CODE> class. Provides a default implementation
 * of a Chat Window. In general, extensions could override this class
 * to offer more support within the chat, but should not be necessary.
 */
public class TranscriptWindow extends ChatArea implements ContextMenuListener {


    private final SimpleDateFormat notificationDateFormatter;
    private final SimpleDateFormat messageDateFormatter;


    private Date lastUpdated;

    /**
     * The default font used in the chat window for all messages.
     */
    private Font defaultFont;

    private Date lastPost;

    /**
     * Creates a default instance of <code>TranscriptWindow</code>.
     */
    public TranscriptWindow() {
        setEditable(false);

        // Set Default Font
        final LocalPreferences pref = SettingsManager.getLocalPreferences();
        int fontSize = pref.getChatRoomFontSize();
        defaultFont = new Font("Dialog", Font.PLAIN, fontSize);


        addMouseListener(this);
        addMouseMotionListener(this);
        setDragEnabled(true);
        addContextMenuListener(this);

        // Make sure ctrl-c works
        getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke("Ctrl c"), "copy");

        getActionMap().put("copy", new AbstractAction("copy") {
            public void actionPerformed(ActionEvent evt) {
                StringSelection stringSelection = new StringSelection(getSelectedText());
                Toolkit.getDefaultToolkit().getSystemClipboard().setContents(stringSelection, null);
            }
        });

        notificationDateFormatter = new SimpleDateFormat("EEEEE, MMMMM d, yyyy");
        messageDateFormatter = new SimpleDateFormat("h:mm a");
    }

    /**
     * Inserts a component into the transcript window.
     *
     * @param component the component to insert.
     */
    public void addComponent(Component component) {
        final StyledDocument doc = (StyledDocument)getDocument();

        // The image must first be wrapped in a style
        Style style = doc.addStyle("StyleName", null);


        StyleConstants.setComponent(style, component);

        // Insert the image at the end of the text
        try {
            doc.insertString(doc.getLength(), "ignored text", style);
            doc.insertString(doc.getLength(), "\n", null);
        }
        catch (BadLocationException e) {
            Log.error(e);
        }
    }

    /**
     * Create and insert a message from the current user.
     *
     * @param nickname   the nickname of the current user.
     * @param message    the message to insert.
     * @param foreground the color to use for the message foreground.
     */
    public void insertMessage(String nickname, Message message, Color foreground) {
        // Check interceptors.
        for (TranscriptWindowInterceptor interceptor : SparkManager.getChatManager().getTranscriptWindowInterceptors()) {
            boolean handled = interceptor.isMessageIntercepted(this, nickname, message);
            if (handled) {
                // Do nothing.
                return;
            }
        }

        String body = message.getBody();

        try {
            DelayInformation inf = (DelayInformation)message.getExtension("x", "jabber:x:delay");
            Date sentDate = null;
            if (inf != null) {
                sentDate = inf.getStamp();

                body = "(Offline) " + body;
            }
            else {
                sentDate = new Date();
            }

            String date = getDate(sentDate);

            // Agent color is always blue
            StyleConstants.setBold(styles, false);
            StyleConstants.setForeground(styles, foreground);
            final Document doc = getDocument();
            styles.removeAttribute("link");

            StyleConstants.setFontSize(styles, defaultFont.getSize());
            doc.insertString(doc.getLength(), date + nickname + ": ", styles);

            // Reset Styles for message
            StyleConstants.setBold(styles, false);

            StyleConstants.setForeground(styles, Color.black);
            setText(body);
            insertText("\n");
        }
        catch (BadLocationException e) {
            Log.error("Error message.", e);
        }
    }

    /**
     * Inserts a full line using a prefix and message.
     *
     * @param prefix     the prefix to use. If null is used, then only the message will be inserted.
     * @param message    the message to insert.
     * @param foreground the foreground color for the message.
     */
    public void insertPrefixAndMessage(String prefix, String message, Color foreground) {
        try {
            // Agent color is always blue
            StyleConstants.setBold(styles, false);
            StyleConstants.setForeground(styles, foreground);
            final Document doc = getDocument();
            styles.removeAttribute("link");

            StyleConstants.setFontSize(styles, defaultFont.getSize());
            if (prefix != null) {
                doc.insertString(doc.getLength(), prefix + ": ", styles);
            }

            // Reset Styles for message
            StyleConstants.setBold(styles, false);

            StyleConstants.setForeground(styles, Color.black);
            setText(message);
            insertText("\n");
        }
        catch (BadLocationException e) {
            Log.error("Error message.", e);
        }
    }


    /**
     * Create and insert a notification message. A notification message generally is a
     * presence update, but can be used for most anything related to the room.
     *
     * @param message         the information message to insert.
     * @param foregroundColor the foreground color to use.
     */
    public synchronized void insertNotificationMessage(String message, Color foregroundColor) {
        try {
            // Agent color is always blue
            StyleConstants.setBold(styles, false);
            StyleConstants.setForeground(styles, foregroundColor);
            final Document doc = getDocument();
            styles.removeAttribute("link");

            StyleConstants.setFontSize(styles, defaultFont.getSize());
            doc.insertString(doc.getLength(), "", styles);

            // Reset Styles for message
            StyleConstants.setBold(styles, false);
            StyleConstants.setForeground(styles, foregroundColor);
            setText(message);
            insertText("\n");

            // Default back to black
            StyleConstants.setForeground(styles, Color.black);
        }
        catch (BadLocationException ex) {
            Log.error("Error message.", ex);
        }
    }

    /**
     * Create and insert a notification message. A notification message generally is a
     * presence update, but can be used for most anything related to the room.
     *
     * @param text       the text to insert.
     * @param bold       true to use bold text.
     * @param underline  true to have text underlined.
     * @param foreground the foreground color.