Web Browser in C#

//Goga Claudia
//WBrowser 2009
//Email : goga.claudia@gmail.com
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.IO;

namespace WBrowser
{
    public partial class OrganizeFavorites : Form
    {
        TreeView tree;
        ToolStrip linkbar;
        String favXml =WBrowser.favXml , linksXml = WBrowser.linksXml;
        ContextMenuStrip linkContext, favContext;
        public OrganizeFavorites(TreeView tree,ToolStrip linkbar,ContextMenuStrip linkContext,ContextMenuStrip favContext)
        { 
            this.tree = tree;
            this.linkbar = linkbar;
            this.linkContext = linkContext;
            this.favContext = favContext;
            InitializeComponent();
        }

        private void OrganizeFavorites_Load(object sender, EventArgs e)
        {
            organizeFavTreeView.ImageList = tree.ImageList;
            organizeFavTreeView.Nodes[0].ImageIndex = 0;
            
            XmlDocument myXml = new XmlDocument();

            if (File.Exists(favXml))
            {
                myXml.Load(favXml);

                foreach (XmlElement el in myXml.DocumentElement.ChildNodes)
                {
                    Uri url = new Uri(el.GetAttribute("url"));
                    TreeNode node = new TreeNode(el.InnerText, tree.ImageList.Images.IndexOfKey(url.Host.ToString()), tree.ImageList.Images.IndexOfKey(url.Host.ToString()));
                    node.ToolTipText = el.GetAttribute("url");
                    node.Name = el.GetAttribute("url");
                    node.ContextMenuStrip = organizeContextMenu;
                    organizeFavTreeView.Nodes.Add(node);
                }

            } 

            if (File.Exists(linksXml))
            {
                myXml.Load(linksXml);

                foreach (XmlElement el in myXml.DocumentElement.ChildNodes)
                {
                    Uri url = new Uri(el.GetAttribute("url"));
                    TreeNode node = new TreeNode(el.InnerText,tree.ImageList.Images.IndexOfKey(url.Host.ToString()), tree.ImageList.Images.IndexOfKey(url.Host.ToString()));
                    node.ToolTipText = el.GetAttribute("url");
                    node.Name = el.GetAttribute("url");
                    node.ContextMenuStrip = organizeContextMenu;
                    organizeFavTreeView.Nodes[0].Nodes.Add(node);
                }

            }
              
            
        }
//rename method
        private void rename()
        {
            if (organizeFavTreeView.SelectedNode.Index >= 0)
            {
                String file = "";
                RenameLink rl = new RenameLink(organizeFavTreeView.SelectedNode.Text);
                TreeNode node = organizeFavTreeView.SelectedNode;

                if (rl.ShowDialog() == DialogResult.OK)
                {
                    node.Text = rl.newName.Text;

                    if (organizeFavTreeView.Nodes[0].Nodes.Contains(node))
                    { if(tree.Visible==true)
                        tree.Nodes[0].Nodes[node.Name].Text = rl.newName.Text;
                        file = linksXml;
                        if (linkbar.Visible==true)
                        linkbar.Items[node.Name].Text = rl.newName.Text;
                    }
                    else
                    {   if(tree.Visible==true)
                        tree.Nodes[node.Name].Text = rl.newName.Text;
                        file = favXml;
                    }
                }

                XmlDocument myXml = new XmlDocument();
                myXml.Load(file);
                foreach (XmlElement x in myXml.DocumentElement.ChildNodes)
                {
                    if (x.GetAttribute("url").Equals(node.Name))
                    {
                        x.InnerText = rl.newName.Text;
                        break;
                    }
                }

                myXml.Save(file);

                rl.Close();
            } 
        }
//delete method       
        private void delete()
        {
            if (organizeFavTreeView.SelectedNode.Index >= 0)
            {
                String file = "";
                TreeNode node = organizeFavTreeView.SelectedNode;

                if (organizeFavTreeView.Nodes[0].Nodes.Contains(node))
                { if(tree.Visible==true)
                    tree.Nodes[0].Nodes[node.Name].Remove();
                    file = linksXml;
                    if(linkbar.Visible==true)
                    linkbar.Items[node.Name].Dispose();
                }
                else
                {if(tree.Visible==true)
                    tree.Nodes[node.Name].Remove();
                    file = favXml;
                }

                node.Remove();
                XmlDocument myXml = new XmlDocument();
                myXml.Load(file);
                XmlElement root = myXml.DocumentElement;
                foreach (XmlElement x in root.ChildNodes)
                {
                    if (x.GetAttribute("url").Equals(node.Name))
                    {
                        root.RemoveChild(x);
                        break;  
                    }
                }

                myXml.Save(file);
            }
        }
        public void move()
        {
            if (organizeFavTreeView.SelectedNode.Index >= 0)
            { 
                String dest="",source="",element="";
                TreeNode node = organizeFavTreeView.SelectedNode;
               
              if (organizeFavTreeView.Nodes[0].Nodes.Contains(node))
              {
                  organizeFavTreeView.SelectedNode.Remove();
                  organizeFavTreeView.Nodes.Add(node);

                  dest = favXml;
                  source = linksXml;
                  element = "favorit";

                  if (tree.Visible == true)
                  {
                      tree.Nodes[0].Nodes.RemoveByKey(node.Name);
                      node.ContextMenuStrip = favContext;
                      tree.Nodes.Add(node);
                  }
                   
                  if(linkbar.Visible==true)
                  linkbar.Items.RemoveByKey(node.Name);

              }
              else { dest = linksXml;
                     source = favXml;
                     element = "link";
                     
                     organizeFavTreeView.SelectedNode.Remove();
                     organizeFavTreeView.Nodes[0].Nodes.Add(node);
                     if (tree.Visible == true)
                     {
                         tree.Nodes.RemoveByKey(node.Name);
                         node.ContextMenuStrip = linkContext;
                         tree.Nodes[0].Nodes.Add(node);
                     }
                     //if (linkbar.Visible == true)
                         
                  
                   }
            
              XmlDocument sourceXml = new XmlDocument();
              XmlDocument destXml = new XmlDocument();
              sourceXml.Load(source);
              destXml.Load(dest);
                XmlElement el=destXml.CreateElement(element);
                el.SetAttribute("url", node.ToolTipText);
                el.InnerText = node.Text;
                destXml.DocumentElement.AppendChild(el);
                
                XmlElement root = sourceXml.DocumentElement;
                
                foreach (XmlElement elem in root.ChildNodes)
                {
                    if (elem.GetAttribute("url").Equals(node.ToolTipText))
                    {
                        root.RemoveChild(elem);
                        break;
                    }
                }
              destXml.Save(dest);
              sourceXml.Save(source);
            }
        }
        private void button4_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            rename();
        }

        private void renameToolStripMenuItem_Click(object sender, EventArgs e)
        {
            rename();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            delete();
        }

        private void deleteToolStripMenuItem_Click(object sender, EventArgs e)
        {
            delete();
        }

        private void organizeFavTreeView_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                organizeFavTreeView.SelectedNode = e.Node;
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            move();
        }
    }
}