import WebFlow.FileBrowser.*;
import java.util.*;
import javax.swing.*;
import javax.swing.tree.DefaultMutableTreeNode;
import java.awt.GridLayout;
import java.awt.event.WindowListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Enumeration;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.util.*;
import java.io.*;
import java.net.*;
import org.omg.CORBA.*;

public class FileBrowserCtr extends JInternalFrame implements ActionListener {
    public FileBrowser fileBrowser;
    private FileBrowserListener listener = null;
    public static String FILESEPARATOR = "/"; 

    int sbh=2;
    private String CurrentFile,CurrentFileName,CurrentDirectory;

    
    public FileBrowserCtr (String directory, FileBrowser file_browser) {
	super("FileBrowser", true, true, true, true);

	fileBrowser = file_browser;
	FILESEPARATOR = file_browser.getFileSeparator();

	FBFileTreeModel  root = new FBFileTreeModel(directory, this);
	refreshFileBrowser(root, directory);
	System.out.println("FileBrowserCtr is constructed");
    }

    public FileBrowserCtr (String directory, FileBrowser file_browser, FileBrowserListener aListener) {
	super("FileBrowser", true, true, true, true);

	fileBrowser = file_browser;
	FILESEPARATOR = file_browser.getFileSeparator();
	listener = aListener;
	
	FBFileTreeModel  root = new FBFileTreeModel(directory, this);
	refreshFileBrowser(root, directory);
	System.out.println("FileBrowserCtr is constructed");
    }

    public void refreshFileBrowser(FBFileTreeModel  root,String rootName)
    {
	//remove all the components inside the Panel
	removeAll();
	GridBagLayout gridbag = new GridBagLayout();
	GridBagConstraints c = new GridBagConstraints();
	setLayout(gridbag);
	
	FBselectedFile file_field = new FBselectedFile("", 15, "file", this);
	FBDirTree tree = new FBDirTree(root); //!!!,this);
	JScrollPane scrollPane = new JScrollPane(tree);
	tree.addMouseListener(file_field);
	tree.addTreeExpansionListener(root);
	root.addTreeModelListener(tree);
	
	JLabel label = new JLabel("Enter Path and Folder Name :");
	//Row 0
	
	addComponent(this,label,0,0,GridBagConstraints.REMAINDER,1,
		     GridBagConstraints.HORIZONTAL,GridBagConstraints.CENTER,0);

	final FBselectedFile directory_field=new FBselectedFile(rootName,15,
								"directory",this);
	tree.addMouseListener(directory_field);
	directory_field.addActionListener(root);
	
	// Row 1
	addComponent(this,directory_field,0,1,GridBagConstraints.REMAINDER,1,
		     GridBagConstraints.HORIZONTAL,GridBagConstraints.CENTER,0);
	// Row 2 
	scrollPane.setSize(150,300);
	addComponent(this,scrollPane,0,2,GridBagConstraints.REMAINDER,
		     sbh, GridBagConstraints.BOTH,
		     GridBagConstraints.CENTER,1);
	// Row 3
	label = new JLabel("Enter File Name :");
	
	addComponent(this,label,0,sbh+2,GridBagConstraints.REMAINDER,1,
		     GridBagConstraints.HORIZONTAL,GridBagConstraints.CENTER,0);
	
	// Row 4	
	addComponent(this,file_field,0,sbh+3,GridBagConstraints.REMAINDER,1,
		     GridBagConstraints.HORIZONTAL,GridBagConstraints.CENTER,0);
	
	//Erol modifications
	directory_field.addActionListener(file_field);
	tree.addTreeExpansionListener(directory_field);
	tree.addTreeExpansionListener(file_field);
	//Erol
	
	// Row 5
	JButton button = new JButton("OK");
	button.addActionListener(file_field);	
	addComponent(this, button,0,sbh+4,1,1,
		     GridBagConstraints.HORIZONTAL,GridBagConstraints.EAST,0);

	button = new JButton("View");
	button.addActionListener(this);
	addComponent(this,button,1,sbh+4,1,1,
		     GridBagConstraints.HORIZONTAL,GridBagConstraints.WEST,0);

	button = new JButton("ULoad");
	button.addActionListener(this);
	addComponent(this,button,0,sbh+5,1,1,
		     GridBagConstraints.HORIZONTAL,GridBagConstraints.WEST,0);
	
	button = new JButton("DLoad");
	button.addActionListener(this);
	addComponent(this,button,1,sbh+5,1,1,
		     GridBagConstraints.HORIZONTAL,GridBagConstraints.WEST,0);
    }

    public FileBrowser getFileBrowser() { return fileBrowser; };
    
    
    protected void addComponent(java.awt.Container container, Component component,
			     int gridx, int gridy, int gridwidth, int gridheight, int fill,
			     int anchor, int weight) {
	
	LayoutManager lm =container.getLayout();
	GridBagConstraints gbc = new GridBagConstraints();
	gbc.gridx = gridx;
	gbc.gridy = gridy;
	gbc.gridwidth = gridwidth;
	gbc.gridheight = gridheight;
	gbc.fill = fill;
	gbc.anchor = anchor;
	if(weight>0) {
	    gbc.weightx=1.0; 
	    gbc.weighty=1.0;
	} 
	container.add(component,gbc);
    }
    
    public static String  getIORFromURL(String url) {
	System.out.println("Slave WebFlow is getting IOR from url:"+url);
	String masterServerIOR="";
	String thisLine=null;
	try {
	    URL u = new URL(url);
	    DataInputStream theHTML = new DataInputStream(u.openStream());
	    while ((thisLine = theHTML.readLine()) != null)
		masterServerIOR += thisLine;
	}
	catch (MalformedURLException e) {
	    System.out.println("FileBrowserCtr" + url + " is not a parseable URL");
	    System.out.println("FileBrowserCtr" + e);
	}
	catch (Exception e) {
	    System.out.println("FileBrowserCtr" + e);
	}
	return masterServerIOR;
    }
    
    public String getCurrentFile(){
	return CurrentFile;
    }
    
    public void setCurrentFile(String x){
        CurrentFile = x;
        int i = x.lastIndexOf(FILESEPARATOR);
        CurrentFileName = x.substring(i + 1);
        CurrentDirectory = x.substring(0, i);
        System.out.println("file name: "+CurrentFileName); 
        System.out.println("dir name : "+CurrentDirectory); 
        System.out.println("file     : "+CurrentFile); 
    }    

    private String getFileName(String msg) {
	JFrame frame = new JFrame();
	FileDialog dial 
	    = new FileDialog(frame, "Select name of the file", FileDialog.LOAD);
	dial.show();

	return dial.getDirectory() + dial.getFile();
	/*
	  JMDialog dial = new JMDialog("Input file name", msg);
	  if(dial.show_modal())
	  return dial.getFileName();
	  throw new RuntimeException();
	*/
    }

    public void actionPerformed(ActionEvent e) {
	if(listener == null)
	    return;
	try {
	    if(((JButton)e.getSource()).getLabel().equals("View")) {
		System.out.println("current file is "+CurrentFile);
		listener.view(CurrentFile, CurrentFileName);
	    }

	    if(((JButton)e.getSource()).getLabel().equals("ULoad")) {
		String remote_file = CurrentFile;
		String local_file = getFileName("Input source name");
		System.out.println("local file = " + local_file + ", remote file = " + remote_file);
		listener.upload(remote_file, local_file);
	    }
	    
	    if(((JButton)e.getSource()).getLabel().equals("DLoad")) {
		String remote_file = CurrentFile;
		String local_file = getFileName("Input destination name");
		System.out.println("remote file = "+remote_file + ", local file = " + local_file);
		listener.download(local_file, remote_file);
	    }
	} catch(RuntimeException ex) {};
    }
}


class JMDialog extends JDialog implements ActionListener
{
    private boolean isOk = false;
    private JTextField text_field;

    JMDialog(String title, String msg){
	super((Frame)null, title, true);
	setBounds(200, 200, 400, 70);
	getContentPane().setLayout(new BorderLayout());
	text_field = new JTextField();
	getContentPane().add(text_field, BorderLayout.CENTER);
	JButton button = new JButton("Ok");
	button.addActionListener(this);
	getContentPane().add(button, BorderLayout.EAST);
	getContentPane().add(new JLabel(msg), BorderLayout.NORTH);
    }

    public void actionPerformed(ActionEvent e) {
	isOk = true;
	hide();
    }

    boolean show_modal() {
	show();
	return isOk;
    }
    
    String getFileName() { return text_field.getText(); }

    public Dimension getPreferredSize() {
	return new Dimension(70, 200);
    }
}