/* 
 *	Jeti, a Java Jabber client, Copyright (C) 2003 E.S. de Boer  
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *	For questions, comments etc, 
 *	use the website at http://jeti.jabberstudio.org
 *  or mail/IM me at jeti@jabber.org
 *
 *	Created on 28-apr-2003
 */

package nu.fw.jeti.ui;

import java.awt.*;
import java.awt.event.*;
import java.text.DateFormat;
import java.text.MessageFormat;
import java.util.*;
import java.util.List;

import javax.swing.Timer;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.text.*;
import javax.swing.border.*;
import javax.swing.ImageIcon;

import nu.fw.jeti.events.ChatEndedListener;
import nu.fw.jeti.jabber.Backend;
import nu.fw.jeti.jabber.JID;
import nu.fw.jeti.jabber.JIDStatus;
import nu.fw.jeti.jabber.elements.*;
import nu.fw.jeti.plugins.*;
import nu.fw.jeti.util.Base64;
import nu.fw.jeti.util.I18N;
import nu.fw.jeti.util.Preferences;
import nu.fw.jeti.util.JavaScriptServerExpresso;
import nu.fw.jeti.util.ServerExpresso;

/**
 * @Author : Alexandre Correia - alexandrecorreia@celepar.pr.gov.br
 * @Date : 05/11/2008
 * @Brief : classe focusWindow, faz com que o titulo fique piscando.
 */

class focusWindow implements ActionListener
{
	private boolean flag = false;
	private JFrame window;
	private String title;
	private Timer timer = new Timer(1000, this);
	private String name;
	
	public focusWindow()
	{
		timer.start();
	}
	
	public void load(JFrame window, String name)
	{
		this.window = window;
		this.title = window.getTitle();
		this.name = name;
		
	}
    public void actionPerformed(ActionEvent evt)
    {
    	if( window.getExtendedState() == window.ICONIFIED )
    	{
	    	if(flag)
	    		window.setTitle("## " + this.name + " fala...");
	    	else
	    		window.setTitle(this.title);
	    	flag = !flag;
    	}
    	else
    	{
    		timer.stop();
    		window.setTitle(this.title);
    	}
    }
}

/**
 * class defining basic feature of a chat window
 * used by groupchatwindow and chatwindow
 * @author E.S. de Boer
 *
 */

//Do not add text to txtUitvoer outside this class, otherwise the text will 
//not scroll to the end

public class ChatSplitPane extends JSplitPane 
{
	private JID contactJID;
	private String me;
	private Backend backend;
	private JScrollPane scrlInvoer = new JScrollPane();
	private JTextPane txtInvoer = new JTextPane();
	private JScrollPane scrlUitvoer = new JScrollPane();
	private JTextPane txtUitvoer = new ToolTipTextpane();
	private String contactName;
	private String thread;
	private boolean enterSends = false;
	private boolean showTimestamp = false;
	private Emoticons emoticons;
	private JPanel pnlBottom = new JPanel();
	private BorderLayout borderLayout1 = new BorderLayout();
	private JPanel pnlControl = new JPanel();
	private JPopupMenu popupMenu = new JPopupMenu();
	private JPopupMenu popupSelectedMenu = new JPopupMenu();
	private String composingID;
	private boolean typing = false;
	private FormattedMessage xhtml;
	private boolean groupChat;
	private Spell spell;
	private Translator translator;
	private Translator links;
	private Translator xmppuri;
	private Translator colormessages;
	private Notifiers titleTimer;
	private Notifiers titleFlash;
	private SimpleAttributeSet colorAttributeSet = new SimpleAttributeSet();
	private boolean toFrontOnNewMessage = false;
	private static DateFormat dateFormat = DateFormat.getTimeInstance();
	DateFormat shortDate= DateFormat.getDateInstance(DateFormat.SHORT);
	DateFormat shortTime= DateFormat.getTimeInstance(DateFormat.SHORT);
	private volatile boolean scrolls=true;
	private volatile boolean systemScroll=true;
	private Date date = new Date();
	private ImageIcon avatar;

	
	class ToolTipTextpane extends JTextPane
	{
		//Tooltip on textpane, show time of message
		public String getToolTipText(MouseEvent e)
		{
			int location = txtUitvoer.viewToModel(e.getPoint());
			StyledDocument doc = (StyledDocument) txtUitvoer.getDocument();
			AttributeSet set = doc.getCharacterElement(location).getAttributes();
			return (String) set.getAttribute("time");	
		}
	}
	
	/**
	 * Groupchat splitpane constructor 
	 * @param backend
	 * @param to
	 * @param toName
	 * @param me
	 * @param thread
	 * @param groupChat
	 * @param type
	 * @param menu
	 * @param frame
	 * 
	 */
	public ChatSplitPane(Backend backend, JID to,String toName,String me,JMenu menu,JFrame frame)
	{
		groupChat = true; 
		contactJID = to;
        contactName = toName; 
		this.backend = backend;
		this.me = me;
		toFrontOnNewMessage = Preferences.getBoolean("groupchat", "toFrontOnNewMessage", false);
		init("groupchat",menu);
		setParentFrame(frame);
	}
	
	/**
	 * 1-1 chat splitpane constructor
	 * @param backend
	 * @param to
	 * @param me
	 * @param thread
	 * @param menu
	 * @param frame
	 */
	public ChatSplitPane(Backend backend, JIDStatus jidStatus,String me,String thread,JMenu menu,JFrame frame)
	{
		this.groupChat = false; 
		contactJID = jidStatus.getCompleteJID();
        contactName = jidStatus.getNick(); 
		avatar = jidStatus.getAvatar();
		this.backend = backend;
		this.me = me;
		this.thread = thread;
		toFrontOnNewMessage = Preferences.getBoolean("jeti", "toFrontOnNewMessage", false);
		init(jidStatus.getType(),menu);
		setParentFrame(frame);
	}
	
	/**
	 * Add a menu to the menu invoked when the user presses on 
	 * the right mousebutton and there is text selected
	 * @param submenu The menu to add
	 */
	public void addToSelectedTextPopupMenu(JMenu submenu)
	{
		popupSelectedMenu.add(submenu);
	}
	
	public String getSelectedText()
	{
		String text = txtUitvoer.getSelectedText();
		if(text!=null) return text;
		else return txtInvoer.getSelectedText();
	}
	
	public void init(String type,JMenu menu)
	{
		JCheckBoxMenuItem chkItem = new JCheckBoxMenuItem(I18N.gettext("main.chat.menu.To_front_on_new_message"));
		chkItem.setSelected(toFrontOnNewMessage);
		chkItem.addActionListener(new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				toFrontOnNewMessage= ((JCheckBoxMenuItem)e.getSource()).isSelected();
			}
		});
		
		menu.add(chkItem);
		
		if (PluginsInfo.isPluginLoaded("emoticons"))
		{
			initEmoticons(type,menu);
		}
				
		Translate translate=null;
		
		if (PluginsInfo.isPluginLoaded("translate"))
		{
			translate = (Translate) PluginsInfo.newPluginInstance("translate");
			translate.init(this,txtInvoer);
			txtUitvoer.addMouseListener(new MouseAdapter()
			{
				public void mouseClicked(MouseEvent e)
				{	
					if(SwingUtilities.isRightMouseButton(e))
					{
						if(txtUitvoer.getSelectedText()!=null)
						{
							popupSelectedMenu.show(e.getComponent(), e.getX(), e.getY());
						}
					}
				}
			});
		}
		
		if (PluginsInfo.isPluginLoaded("spell"))
		{
			spell = (Spell) PluginsInfo.newPluginInstance("spell");
			spell.addChangeDictoryMenuEntry(menu);
		}
		
		if (PluginsInfo.isPluginLoaded("links"))
		{
			links = (Translator) PluginsInfo.newPluginInstance("links");
			links.init(txtUitvoer);
		}
		if (PluginsInfo.isPluginLoaded("xmppuri"))
		{
			xmppuri = (Translator) PluginsInfo.newPluginInstance("xmppuri");
			xmppuri.init(txtUitvoer);
		}
		if (PluginsInfo.isPluginLoaded("colormessages"))
		{
			colormessages = (Translator) PluginsInfo.newPluginInstance("colormessages");
		}
		if (PluginsInfo.isPluginLoaded("titlescroller"))
		{
			titleTimer = (Notifiers) PluginsInfo.newPluginInstance("titlescroller");
		}
		if (PluginsInfo.isPluginLoaded("titleflash"))
		{
			titleFlash = (Notifiers) PluginsInfo.newPluginInstance("titleflash");
		}
		if(PluginsInfo.isPluginLoaded("windowsutils"))
		{
			NativeUtils util =(NativeUtils)PluginsInfo.newPluginInstance("windowsutils");
			util.addChatMenus(menu,this);
		}
		
		//translator = PluginsInfo.getTranslator();
		if(emoticons != null || spell != null || translate!=null)  
		{	
			txtInvoer.addMouseListener(new MouseAdapter()
			{
				public void mousePressed(MouseEvent e)
				{
					if (SwingUtilities.isRightMouseButton(e))
					{
						if(txtInvoer.getSelectedText()!=null)
						{
							popupSelectedMenu.show(e.getComponent(), e.getX(), e.getY());
						}
						else if(spell != null)
						{
							if(!spell.rightClick(txtInvoer,e) && emoticons != null) popupMenu.show(e.getComponent(), e.getX(), e.getY());
						}
						else popupMenu.show(e.getComponent(), e.getX(), e.getY());
					}
				}
			});
		}
		
		ToolTipManager.sharedInstance().registerComponent(txtUitvoer);
			
		enterSends = Preferences.getBoolean("jeti","enterSends",true);
		showTimestamp = Preferences.getBoolean("jeti","showTimestamp",true);
		
		try
		{
			jbInit();
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}
		if (PluginsInfo.isPluginLoaded("xhtml"))
		{
			//String contactJid = contactJID.toString();
			xhtml = (FormattedMessage) PluginsInfo.newPluginInstance("xhtml");
			xhtml.initXHTML(this, txtInvoer, pnlControl, contactJID, contactName);
		}
		
		String t = "";
		//if(!groupChat)	
		//notify();
		if (thread == null)t = "no id - ";
		Document doc = txtUitvoer.getDocument();
		try
		{
			SimpleAttributeSet sas = new SimpleAttributeSet();
			StyleConstants.setForeground(sas, Color.gray);
			doc.insertString(doc.getLength(), t + I18N.gettext("main.chat.Chat_started_on") + " " + DateFormat.getDateTimeInstance().format(new Date()), sas);
		}
		catch (BadLocationException e)
		{
			e.printStackTrace();
		}
		
		//solves bug iconofied frame then no system message and wrong layout
		//pack();
		
		setBorder(null);		
		setSize(300, 350);
	}
	
	public JTextPane getTextInput()
	{
		return txtInvoer;
	}

	
	public void setParentFrame(JFrame frame)
	{
		if (titleTimer !=null)
		{
			titleTimer.init(frame,contactName);
		}
		if (titleFlash != null)
		{
			titleFlash.init(frame, contactName);
		}
	}
	
	private void initEmoticons(String type,JMenu menu)
	{
		//showEmoticons = true;
		emoticons = (Emoticons) PluginsInfo.newPluginInstance("emoticons");
		try
		{
			emoticons.init(txtUitvoer, pnlControl, txtInvoer, popupMenu,type,menu);
		}
		catch (IllegalStateException ex)
		{
			ex.printStackTrace(); 
			//showEmoticons = false;
			PluginsInfo.unloadPlugin("emoticons");
			emoticons = null;
			return;
		}
	}
	
	public void close()
	{
		if(groupChat)contactJID = new JID(contactJID.getUser(),contactJID.getDomain(),me);
		for(Iterator j = backend.getListeners(ChatEndedListener.class);j.hasNext();)
		{//exit
			((ChatEndedListener)j.next()).chatEnded(contactJID);
		}
	}
	
//	public boolean compareJID(JID jid)
//	{
//		return from.equals(jid);
//	}
//	
//	public String getThread()
//	{
//		return thread;
//	}

	public void appendMessage(Message message,String name)
	{
		if (name == null)
		{
			appendSystemMessage(message.getBody());
		}
		else if(name.equals(me))
		{
			showMessage(message,new Color(156, 23, 23),Preferences.getString("jeti", "ownName", me));
		}
		else
		{
			if(titleTimer!=null )
			{
                titleTimer.start(
                    MessageFormat.format(
                        I18N.gettext("main.chat.{0}_says_{1}"),
                        new Object[] {name,message.getBody()}));
            }
			
			if(titleFlash!=null)
			{
                titleFlash.start("");
            }
			
			if(!groupChat)contactJID = message.getFrom();
			
			showMessage(message, new Color(17, 102, 6), name);
		}
	}
	
	public  void appendSystemMessage(final String message)
	{
		SwingUtilities.invokeLater(new Runnable()
		{
			public void run()
			{
				final Document doc = txtUitvoer.getDocument();
				final Point  viewPos = scrlUitvoer.getViewport().getViewPosition();
				final boolean scroll = scrolls;//cache scroll value because insertstring will update it
				systemScroll=true;
				SimpleAttributeSet sas = new SimpleAttributeSet();
				StyleConstants.setForeground(sas, Color.gray);
				String timeStamp;
				if (showTimestamp) 	timeStamp = formatTime(new Date()) + " ";
				else timeStamp = "";
				try
				{
					doc.insertString(doc.getLength(), "\n"+ timeStamp + message, sas);
				}
				catch (BadLocationException e)
				{
					e.printStackTrace();
				}
				
				if(scroll)
				{
					txtUitvoer.setCaretPosition(doc.getLength());
					scrolls=true;
				}
				else
				{
					scrlUitvoer.getViewport().setViewPosition(viewPos);
				}
			}
		});
	}
	
	private void showMessage(final Message message,final Color color,final String name)
	{//two threads can write to display (typing & receiving)
			
		SwingUtilities.invokeLater(new Runnable()
		{
			public void run()
			{
				String text = message.getBody();
		        Date tempdelay =null;
				List tempWordList=null;
				date.setTime(System.currentTimeMillis());
				
				// Loop through extensions
				if (message.hasExtensions())
				{
					for (Iterator i = message.getExtensions(); i.hasNext();)
					{
						Extension extension = (Extension) i.next();
						if (extension instanceof XDelay)
						{
							tempdelay = ((XDelay) extension).getDate();
						}
						else if(xhtml!=null) 
						{
							if(tempWordList==null) tempWordList = xhtml.getWordList(extension);
						}
					}
				}
				if (xhtml!=null && !name.equals(me) && !groupChat) {
		            xhtml.useXHTML(tempWordList!=null, name);
		        }
				
				if (tempWordList==null) {
					tempWordList = createWordList(text);
		        }

		        // Mark eventual weblinks (if links extension is active)
				if(links!=null) {
		            links.translate(tempWordList);
		        }
				
				if(xmppuri!=null) {
		            xmppuri.translate(tempWordList);
		        }
				if(groupChat) {//me replace with nick
					for(Iterator i = tempWordList.iterator();i.hasNext();) {
						Word w = (Word) i.next();
						if(w.word.equals("/me")) {
		                    w.word = name;
		                }
					}
				}

				// Handle error messages
				if (message.getType().equals("error")) {
		            insertError(tempWordList, message);
				}

				// Insert eventual emoticons
				if (emoticons != null) {
		            emoticons.insertEmoticons(tempWordList);
		        }

				//TODO make a new translator thing for here and below
				if (translator != null) translator.translate(tempWordList);

				final Date delay = tempdelay;
				final List wordList = tempWordList;
				
				
				Point  viewPos = scrlUitvoer.getViewport().getViewPosition();
				boolean scroll = scrolls;//cache scroll value because insertstring will update it
				systemScroll=true;
				Document doc = txtUitvoer.getDocument();
				try
				{
					doc.insertString(doc.getLength(),"\n",null);
		            if (delay != null) 
		            {
		            	SimpleAttributeSet sas = new SimpleAttributeSet();
		                StyleConstants.setForeground(sas, Color.darkGray);
		                doc.insertString(doc.getLength(), formatTime(delay) + " ", sas);
		            }
					else if (showTimestamp) 
					{// Eventual timestamp
		                SimpleAttributeSet sas = new SimpleAttributeSet();
		                StyleConstants.setForeground(sas, Color.gray);
		                doc.insertString(doc.getLength(), formatTime(date) + " ", sas);
		            }
					
		            StyleConstants.setForeground(colorAttributeSet, color);
		
		            // Print originator if not error
		            if (!message.getType().equals("error")) {
						colorAttributeSet.addAttribute("time",dateFormat.format(date));
						doc.insertString(doc.getLength(),name+ ": ",colorAttributeSet);
					}
					
		            // Insert words from wordlist
					for(Iterator i = wordList.iterator();i.hasNext();) {
						Word w = (Word) i.next();
						doc.insertString(doc.getLength(),w.toString(),
		                                 w.getAttributes());
					}
		
					if (scroll)	{
		                txtUitvoer.setCaretPosition(doc.getLength());
		                scroll=true;
		            } else {
						scrlUitvoer.getViewport().setViewPosition(viewPos);
					}
				}
				catch (BadLocationException e)
				{
					e.printStackTrace();
				}

				/**
				 * @Author : Alexandre Correia - alexandrecorreia@celepar.pr.gov.br
				 * @Date : 04/11/2008
				 * @Brief : Trecho de codigo abaixo, faz com que a janela fique piscando caso esta esteja
				 * minimizada na barra de tarefas. Criada a classe focusWindow.
				 */

				JFrame frame = (JFrame)getTopLevelAncestor();

				if(toFrontOnNewMessage)
				{
					if(!getTopLevelAncestor().isFocusOwner())
					{
						if(getTopLevelAncestor() instanceof JFrame)
						{
							if( frame.getExtendedState() == Frame.ICONIFIED )
							{
								frame.setState(Frame.NORMAL);
							}
							frame.toFront();
						}
						else txtInvoer.requestFocus();
					}
				}
				
				if( frame.getExtendedState() == Frame.ICONIFIED )
				{
					frame.setVisible(true);
					focusWindow focusW = new focusWindow();
					focusW.load(frame, name);
				}
			}
		});
	}
	
	/**
     * Format a timestamp for display.
     */
    private String formatTime(Date date) {
		String result = "";
		
		if((System.currentTimeMillis() -date.getTime())> 600000)
		{//message is older then 10 min
			Calendar cal = Calendar.getInstance();
			cal.set(Calendar.HOUR, 0);
		    cal.set(Calendar.MINUTE, 0);
		    cal.set(Calendar.SECOND, 0);
		    cal.set(Calendar.AM_PM, Calendar.AM);
		    if(date.before(cal.getTime()))
		    {//print date if it is the previous day
		    	result += shortDate.format(date)+ " ";
		    }
		}
		result+="["+shortTime.format(date)+"]";
		return result;
    }

    // Insert error message into wordList
    private void insertError(List wordList, Message message) {
        String error;
        boolean replace = false;

        switch (message.getErrorCode()) {
        case 404:
            error = MessageFormat.format(
                I18N.gettext("main.error.User_{0}_could_not_be_found"),
                new Object[] {message.getFrom()});
            replace = true;
            break;
        default:
            error = I18N.gettext("main.error.Error_in_chat");
            break;
        }

        // Create list of error words and make them red
        List errorWords = createWordList(error);
        SimpleAttributeSet sas = new SimpleAttributeSet();
        StyleConstants.setForeground(sas, Color.red);
        for(Iterator i = errorWords.iterator();i.hasNext();) {
            ((Word)i.next()).addAttributes(sas);
        }
        
        if (!replace) {
            errorWords.addAll(wordList);
        }
        wordList.clear();
        wordList.addAll(errorWords);
	}

    //TODO move to util??
	public static List createWordList(String text)
	{
		List wordList = new ArrayList();
		StringBuffer temp = new StringBuffer();
		for(int i = 0;i<text.length();i++)
		{//split text up in words
			char c = text.charAt(i);
			switch (c)
			{
				case ' ': 	addWordFromTemp(temp, wordList);
							wordList.add(new Word(" "));
							temp = new StringBuffer(); break;
				case '\n': 	addWordFromTemp(temp, wordList);
							wordList.add(new Word("\n"));
							temp = new StringBuffer(); break;
				case '\t': 	addWordFromTemp(temp, wordList); 
							wordList.add(new Word("\t"));
							temp = new StringBuffer();break;
				default: temp.append(c);
			}
		}
		addWordFromTemp(temp, wordList);
		return wordList;
	}
	
	private static void addWordFromTemp(StringBuffer temp, List wordList)
	{
		if(temp.length()>0)wordList.add(new Word(temp));
	}

	private String getPhotoExpresso(String Jid)
	{
		ServerExpresso JidPhoto = new ServerExpresso();
		return JidPhoto.PhotoUid(Jid);
	}
	
	private void jbInit() throws Exception
	{
		Color c = UIManager.getColor("TextPane.foreground");
		txtInvoer.setForeground(c);
		txtUitvoer.setForeground(c);
		setResizeWeight(0.9);
		setOrientation(JSplitPane.VERTICAL_SPLIT);
		setBottomComponent(pnlBottom);
		scrlInvoer.setPreferredSize(new Dimension(100, 100));

		txtInvoer.addKeyListener(new java.awt.event.KeyAdapter()
		{
			public void keyPressed(KeyEvent e)
			{
				txtInvoer_keyPressed(e);
			}
			
			public void keyReleased(KeyEvent e)
			{
				if(spell!=null)spell.keyReleased(e,txtInvoer);
			}
		});
		txtUitvoer.setEditable(false);
		txtUitvoer.getDocument().putProperty( DefaultEditorKit.EndOfLineStringProperty, "\n" );
		txtInvoer.getDocument().putProperty( DefaultEditorKit.EndOfLineStringProperty, "\n" );
		addFocusListener(new FocusAdapter()
		{
			public void focusGained(FocusEvent e)
			{
				txtInvoer.requestFocusInWindow();
			}
		});

		/**
		 * @Author : Rodrigo Souza
		 * @Date : 15/10/2008
		 * @Description : Trecho de codigo abaixo ajusta as dimensoes da foto (avatar)
		 *				  e demais paineis dentro da janela de conversa.
		 */

		pnlBottom.setLayout(borderLayout1);

		JPanel text = new JPanel();
		text.setLayout(new BoxLayout(text,BoxLayout.PAGE_AXIS));
		text.add(pnlControl);
		text.add(scrlInvoer);
		pnlBottom.add(text, BorderLayout.CENTER);

		/**
		 * @Author : Alexandre Luiz Correia - alexandrecorreia@celepar.pr.gov.br
		 * @Date : 10/09/2008
		 * @Description : Avatar - Carrega as Photos do Ldap
		 */

		// Border
		Border raisedetched;
		raisedetched = BorderFactory.createEtchedBorder(EtchedBorder.RAISED);

		// String
		String userJid = contactJID.toString();
		
		/**
		 *  @Author : Alexandre Correia / Rodrigo Souza
		 *  @Date : 04/03/2009
		 *  @Description : Conecta com a classe ServerExpresso(nu.fw.jeti.util.ServerExpresso) no Expresso e passa 
		 *  a variavel userJid(Ex.: teste@nome_maquina), recebendo uma string em base64.
		 */ 

		String imgUser = getPhotoExpresso(userJid);
		byte[] data = Base64.decode(imgUser);
		ImageIcon icon = new ImageIcon(data);
		JLabel avatar = new JLabel(icon);

		avatar.setBorder(raisedetched);
		pnlBottom.add(avatar, BorderLayout.EAST);

		add(pnlBottom, JSplitPane.BOTTOM);
		add(scrlUitvoer, JSplitPane.TOP);

		scrlUitvoer.getViewport().add(txtUitvoer, null);
		scrlInvoer.getViewport().add(txtInvoer, null);
		scrlUitvoer.getVerticalScrollBar().getModel().addChangeListener(new ChangeListener()
		{
			public void stateChanged(ChangeEvent e)
			{
				BoundedRangeModel model =(BoundedRangeModel)e.getSource();
				if(!model.getValueIsAdjusting())
				{
					if(!systemScroll)
					{//only update if scroll is performed by the user
						if(model.getMaximum()-model.getExtent()-model.getValue()>10)
						{
							scrolls=false;
						}
						else scrolls=true;
					}
					systemScroll=false;
				}
			}
		});

		setOneTouchExpandable(true);		
		setDividerLocation(170);
	}

	public void send()
	{
		if (txtInvoer.getText().length()==0)return;
		boolean sendXHTML = false;
		XExtension html = null;
		XExtension ownHtml = null;
		List wordList=null;
		if(xhtml != null)wordList = xhtml.makeWordListFromDocument();
		if(wordList==null)wordList=createWordList(txtInvoer.getText());
		StringBuffer temp = new StringBuffer();
		//TODO Translator
		//if (translator != null) translator.translate(wordList);
		
		for(Iterator i = wordList.iterator();i.hasNext();)
		{
			temp.append(i.next());
		}
		String text = temp.toString();
		if(colormessages!=null)
		{
			colormessages.translate(wordList);
		}
		if(xhtml != null)
		{	
			html = xhtml.getXHTMLExtension(wordList);
			//ownwordlist will be edited so make deep copy
			ArrayList tempList = new ArrayList();
			try 
			{
				for(Iterator i = wordList.iterator();i.hasNext();)
				{
					tempList.add(((Word)i.next()).clone());
				}
			}
			catch (CloneNotSupportedException e)
			{
				e.printStackTrace();
			}
			ownHtml = xhtml.getXHTMLExtension(tempList);
			sendXHTML = xhtml.sendXML();
		}
		Message message = null;
		if(groupChat)
		{	
			if(html!=null) message = new Message(contactJID,text ,html);
			else message = new Message(contactJID,text);
		}
		else
		{
			MessageBuilder b = new MessageBuilder();
			b.type = "chat";
			b.setTo(contactJID);
			b.setId(backend.getIdentifier());
			b.thread = thread;
			b.addXExtension(new XMessageEvent("composing", null));
			b.body = text;
			if(sendXHTML)b.addXExtension(html);

			message =((Message) b.build());
			showMessage(new Message(text, contactJID, null,thread,ownHtml),new Color(156, 23, 23), "Eu ( " + nu.fw.jeti.applet.Jeti.CNNAME +" ) ");
		}
		backend.sendMessage(message);
		
		txtInvoer.getHighlighter().removeAllHighlights();
		txtInvoer.setText("");
		txtInvoer.requestFocus();
		typing = false;
	}
	
	public void composingID(String id)
	{
		composingID = id;
	}

	void txtInvoer_keyPressed(KeyEvent e)
	{
		/**
		 * Author(s): Alexandre Correia / Rodrigo Souza
		 * Date : 02/03/2009
		 * Brief : Limpa o tempo do Javascript
		 */
		
		JavaScriptServerExpresso cleanSt = new nu.fw.jeti.util.JavaScriptServerExpresso();
		cleanSt.cleanStatus();
		
		if(!groupChat)
		{
			if (txtInvoer.getText().length() < 2 && typing)
			{
				typing = false;
				if (composingID != null)
				{
					//send not composing
					backend.send(new Message(null, contactJID, null, new XMessageEvent(null, composingID)));
				}
			}
			else if (txtInvoer.getText().length() > 0 && !typing)
			{
				typing = true;
				if (composingID != null)
				{
					//send composing
					 backend.send(new Message(null, contactJID, null, new XMessageEvent("composing", composingID)));
				}
			}
		}
		if (e.getKeyCode() == KeyEvent.VK_ENTER)
		{
			if (enterSends)
			{
				if ((e.getModifiers() == InputEvent.SHIFT_MASK) || (e.getModifiers() == InputEvent.CTRL_MASK))
				{
					Document doc = txtInvoer.getDocument();
					try
					{
						doc.insertString(txtInvoer.getCaretPosition(), "\n", null);
					}
					catch (BadLocationException e3)
					{e3.printStackTrace();}
				}
				else 
				{
					send();
					e.consume();
				}
			}
			else if ((e.getModifiers() == InputEvent.SHIFT_MASK) || (e.getModifiers() == InputEvent.CTRL_MASK))
			{
				send();
			}
		}
	}	
}

/*
 * Overrides for emacs
 * Local variables:
 * tab-width: 4
 * End:
 */