Custom Web Menu with Embedded Resources

using System;
using System.Text;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.Xml;
using System.Data;

namespace CustomWebMenu
{
    /// <summary>
    /// Custom CustomWebMenu class. Uses Tigra menu scripts
    /// </summary>
    [DefaultProperty("MenuXMLPath"),
    ToolboxData("<{0}:CustomWebMenu runat=server></{0}:CustomWebMenu>")]
    public class CustomWebMenu : WebControl
    {
        private string xmlDataSource = "";
        private DataSet dsMenu = null;
        private int padWidth = 15;
        //root
        private int rootheight = 24;
        private int rootwidth = 100;
        private int roottop = 0;
        private int rootleft = 0;
        private int rootoffsettop = 0;
        private int rootoffsetleft = 100;
        private int menuhidedelay = 200;
        private int menuexpanddelay = 200;
        private string rootouterstyleclass = "m0l0oout";
        private string rootouteroverstyleclass = "m0l0oover";
        private string rootinnerstyleclass = "m0l0iout";
        private string rootinneroverstyleclass = "m0l0iover";
        //level 1
        private int childtheight = 24;
        private int childwidth = 170;
        private int childtop = 25;
        private int childleft = 0;
        private string childouterstyleclass = "m0l1oout";
        private string childouteroverstyleclass = "m0l1oover";
        private string childinnerstyleclass = "m0l1iout";
        private string childinneroverstyleclass = "m0l1iover";
        //level n
        private int ntop = 5;
        private int nleft = 160;
        private string imgMenuPointerUrl = string.Empty;

        public int RootTop
        {
            get { return roottop; }
            set { roottop = value; }
        }
        public int RootLeft
        {
            get { return rootleft; }
            set { rootleft = value; }
        }
        public int RootHeight
        {
            get { return rootheight; }
            set { rootheight = value; }
        }
        public int RootWidth
        {
            get { return rootwidth; }
            set { rootwidth = value; }
        }

        public int RootOffSetTop
        {
            get { return rootoffsettop; }
            set { rootoffsettop = value; }
        }
        public int RootOffSetLeft
        {
            get { return rootoffsetleft; }
            set { rootoffsetleft = value; }
        }
        public int MenuHideDelayTime
        {
            get { return menuhidedelay; }
            set { menuhidedelay = value; }
        }
        public int MenuExpandDelayTime
        {
            get { return menuexpanddelay; }
            set { menuexpanddelay = value; }
        }
        public string RootOuterStyle
        {
            get { return rootouterstyleclass; }
            set { rootouterstyleclass = value; }
        }
        public string RootMouseOverStyle
        {
            get { return rootouteroverstyleclass; }
            set { rootouteroverstyleclass = value; }
        }
        public string RootInnerStyle
        {
            get { return rootinnerstyleclass; }
            set { rootinnerstyleclass = value; }
        }
        public string RootMouseStyle
        {
            get { return rootinneroverstyleclass; }
            set { rootinneroverstyleclass = value; }
        }
        public int ChildHeight
        {
            get { return childtheight; }
            set { childtheight = value; }
        }
        public int ChildWidth
        {
            get { return childwidth; }
            set { childwidth = value; }
        }
        public int ChildTopMargin
        {
            get { return childtop ; }
            set { childtop = value; }
        }
        public int ChildLeftMargin
        {
            get { return childleft; }
            set { childleft = value; }
        }
        public string ChildOuterStyle
        {
            get { return childouterstyleclass; }
            set { childouterstyleclass = value; }
        }
        public string ChildMouseOverStyle
        {
            get { return childouteroverstyleclass; }
            set { childouteroverstyleclass = value; }
        }
        public string ChildInnerStyle
        {
            get { return childinnerstyleclass; }
            set { childinnerstyleclass = value; }
        }
        public string ChildMouseStyle
        {
            get { return childinneroverstyleclass; }
            set { childinneroverstyleclass = value; }
        }
        public int nChildTop
        {
            get { return ntop; }
            set { ntop = value; }
        }
        public int nChildLeft
        {
            get { return nleft; }
            set { nleft = value; }
        }
        /// <summary>
        /// Distance of the menu arrow from the menu item caluculated using this Pad Width.
        /// </summary>
        public int PadWidth
        {
            get
            {
                return padWidth;
            }
            set
            {
                padWidth = value;
            }
        }

        /// <summary>
        /// Image for the arrow indicating the child menu items e.g.
        /// <code><img src='image.gif'></code>
        /// </summary>
        public string MenuPointerUrl
        {
            set
            {
                imgMenuPointerUrl = value;
            }
            get
            {
                return imgMenuPointerUrl;
            }
        }

        private string MenuPointer
        {
            get
            {
                return (string.IsNullOrEmpty(MenuPointerUrl)) ? "<img src=" + Page.ClientScript.GetWebResourceUrl(this.GetType(), "CustomWebMenu.Resources.Images.OneStep.gif") + " border=0>"
                    : "<img src=" + this.MenuPointerUrl + " border=0>";
            }
        }
        /// <summary>
        /// Path of the XML menu File
        /// </summary>
        [Category("Appearance"),
        DefaultValue("")]
        public string MenuXMLPath
        {
            get
            {
                return xmlDataSource;
            }

            set
            {
                xmlDataSource = value;
            }
        }

        /// <summary>
        /// DataSet from the xml menu as DataSource.
        /// </summary>
        [Bindable(true),
        Category("Appearance"),
        DefaultValue("")]
        public DataSet DataSource
        {
            get
            {
                return dsMenu;
            }

            set
            {
                dsMenu = value;
            }
        }

        string GetMenuData()
        {
            if (dsMenu != null)
            {
                return GetScript(dsMenu.Tables[0]);
            }
            else if (xmlDataSource != "")
            {
                DataSet dsXmlMenu = new DataSet();
                dsXmlMenu.ReadXml(xmlDataSource);
                return GetScript(dsXmlMenu.Tables[0]);
            }
            else
            {
                return "";
            }
        }

        string GetScript(DataTable dtbMenu)
        {
            StringBuilder oMenu = new StringBuilder();
            oMenu.Append(@"<script language='javascript'>var MENU_ITEMS = [");
            GetMenuItems(dtbMenu, "", "", "", ref oMenu);
            //oMenu.Append(@"];new menu (MENU_ITEMS, MENU_POS);</script>");
            oMenu.Append(@"];");
            MenuLayout(ref oMenu);
            oMenu.Append(" new menu (MENU_ITEMS, MENU_POS);</script>");
            return oMenu.ToString();
        }

        private void ReadChildRows(DataTable dtbTable, string nodeId, string nodeName, string nodeParentName, ref StringBuilder oMenu)
        {
            DataRow[] drRows = dtbTable.Select("root='" + nodeId + "'");
            if (drRows.Length > 0)
            {
                if (nodeId != "")
                {
                    if (nodeParentName == "")
                        oMenu.Append("\r\n['" + nodeName + "&nbsp;" + MenuPointer + "', null, null,");
                    else
                        oMenu.Append("\r\n['" + nodeName.PadRight(padWidth, '^').Replace("^", "&nbsp;") + MenuPointer + "', null, null,");
                }

                foreach (DataRow dr in drRows)
                {
                    ReadChildRows(dtbTable, dr["menuid"].ToString(), dr["name"].ToString(), dr["root"].ToString(), ref oMenu);
                    if (dr["root"].ToString() != "")
                    {
                        drRows = dtbTable.Select("root='" + dr["menuid"].ToString() + "'");
                        if (drRows.Length == 0)
                            oMenu.Append("\r\n['" + dr["name"].ToString() + "','" + dr["url"].ToString() + "'],");
                    }
                }
                if (nodeId != "")
                    oMenu.Append("],\r\n\r\n");
            }
            else
            {
                if (nodeParentName == "")
                    oMenu.Append("\r\n['" + nodeName + " " + MenuPointer + "', null, null,null],");
            }
        }

        private void GetMenuItems(DataTable dtbTable, string nodeId, string nodeName, string nodeParentName, ref StringBuilder oMenu)
        {
            DataRow[] drRows = dtbTable.Select("root='" + nodeId + "'");
            if (drRows.Length > 0)
            {
                if (nodeId != "")
                {
                    if (nodeParentName == "")
                        oMenu.Append("\r\n['" + nodeName + "&nbsp;" + MenuPointer + "', null, null,");
                    else
                        oMenu.Append("\r\n['" + nodeName.PadRight(padWidth, '^').Replace("^", "&nbsp;") + MenuPointer + "', null, null,");
                }

                foreach (DataRow dr in drRows)
                {
                    GetMenuItems(dtbTable, dr["menuid"].ToString(), dr["name"].ToString(), dr["root"].ToString(), ref oMenu);
                    if (dr["root"].ToString() != "")
                    {
                        drRows = dtbTable.Select("root='" + dr["menuid"].ToString() + "'");
                        if (drRows.Length == 0)
                            oMenu.Append("\r\n['" + dr["name"].ToString() + "','" + dr["url"].ToString() + "'],");
                    }
                }
                if (nodeId != "")
                    oMenu.Append("],\r\n\r\n");
            }
            else
            {
                if (nodeParentName == "")
                    oMenu.Append("\r\n['" + nodeName + " " + MenuPointer + "', null, null,null],");
            }
        }

        private void MenuLayout(ref StringBuilder oMenu)
        {

            oMenu.Append(" var MENU_POS = [\r\n{");
            oMenu.Append("\r\n 'height' : " + this.RootHeight + " ,\r\n");
            oMenu.Append("'width' : " + this.RootWidth + " ,\r\n");
            oMenu.Append("'block_top' : " + this.RootTop + " ,\r\n");
            oMenu.Append("'block_left' : " + this.RootLeft + " ,\r\n");
            oMenu.Append("'top' : " + this.RootOffSetTop + " ,\r\n");
            oMenu.Append("'left' : " + this.RootOffSetLeft + " ,\r\n");
            oMenu.Append("'hide_delay' : " + this.MenuHideDelayTime + " ,\r\n");
            oMenu.Append("'expd_delay' : " + this.MenuExpandDelayTime + " ,\r\n");
            oMenu.Append("'css' : { \r\n");
            oMenu.Append("'outer' : [ '" + this.RootOuterStyle + "' ,'" + this.RootMouseOverStyle + "'],\r\n");
            oMenu.Append("'inner' : [ '" + this.RootInnerStyle + "' ,'" + this.RootMouseStyle + "']\r\n}\r\n},\r\n{\r\n");
            oMenu.Append("'height' : " + this.ChildHeight + " ,\r\n");
            oMenu.Append("'width' : " + this.ChildWidth + " ,\r\n");
            oMenu.Append("'block_top' : " + this.ChildTopMargin + " ,\r\n");
            oMenu.Append("'block_left' : " + this.ChildLeftMargin + " ,\r\n");
            oMenu.Append("'top' : " + 23 + " ,\r\n");
            oMenu.Append("'left' : " + 0 + " ,\r\n");
            oMenu.Append("'css' : { \r\n");
            oMenu.Append("'outer' : [ '" + this.ChildOuterStyle + "' ,'" + this.ChildMouseOverStyle + "'],\r\n");
            oMenu.Append("'inner' : [ '" + this.ChildInnerStyle + "' ,'" + this.ChildMouseStyle + "']\r\n}\r\n},\r\n{\r\n");
            oMenu.Append("'block_top' : " + this.nChildTop + " ,\r\n");
            oMenu.Append("'block_left' : " + this.nChildLeft );
            oMenu.Append("\r\n } \r\n ];");
        }

        protected override void OnPreRender(EventArgs e)
        {
            base.OnPreRender(e);
            ClientScriptManager cs = this.Page.ClientScript;
            string CustomWebMenu = "CustomWebMenu.Resources.CustomWebMenu.js";
            cs.RegisterClientScriptResource(this.GetType(), CustomWebMenu);
            string css = "<link href=\"" + Page.ClientScript.GetWebResourceUrl(this.GetType(), "CustomWebMenu.Resources.Css.CustomWebMenu.css") + "\" type=\"text/css\" rel=\"stylesheet\" />";
            Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "cssfile", css, false);
        }

        /// <summary>
        /// Render this control to the output parameter specified.
        /// </summary>
        /// <param name="output"> The HTML writer to write out to </param>
        protected override void Render(HtmlTextWriter output)
        {
            if (this.DataSource != null || !string.IsNullOrEmpty(this.xmlDataSource))
                output.Write(GetMenuData());
        }
    }
}