Building a Better ASP.NET 1.1 BasePage Framework

using System;
using System.Web.UI.WebControls;
using System.Collections;
using System.Collections.Specialized;
using System.Xml;

namespace BasePageFramework.Configuration
{
	/// <summary>
	/// Summary description for BasePageConfiguration.
	/// </summary>
	public class BasePageConfiguration
	{
		private string _pageName = string.Empty;
		private NameValueCollection _bodyAttributes = new NameValueCollection();
		private HorizontalAlign _alignment = HorizontalAlign.NotSet;
		private string _defaultTitle = string.Empty;
		private NameValueCollection _scriptFiles = new NameValueCollection();
		private NameValueCollection _cssFiles = new NameValueCollection();
		private NameValueCollection _metaTags = new NameValueCollection();
		
		public BasePageConfiguration(XmlNode xml)
		{
			//parse the xml passed to us and set the configuration state
			
			//first get the name of this page
			System.Xml.XmlAttribute pageName = (XmlAttribute)xml.Attributes.GetNamedItem("name");

			System.Xml.XmlAttribute defaultTitle = (XmlAttribute)xml.Attributes.GetNamedItem("defaultTitle");
			
			if(defaultTitle != null)
				_defaultTitle = defaultTitle.Value;
			else
				_defaultTitle = string.Empty;
			
			if(pageName != null)
				_pageName = pageName.Value;
			else
				throw new System.Configuration.ConfigurationException("The name attribute is required on all basepage configuration entries.");


			//get the body tag attributes
			System.Xml.XmlNodeList bodyAttrib = xml.SelectNodes("body/attribute");
			foreach(XmlNode attr in bodyAttrib)
			{
				XmlAttribute name = (XmlAttribute)attr.Attributes.GetNamedItem("name");
				XmlAttribute val = (XmlAttribute)attr.Attributes.GetNamedItem("value");

				if(name != null && val != null)
				{
					_bodyAttributes.Add(name.Value,val.Value);
				}

			}
			
			//get the site settings

			System.Xml.XmlNode title = xml.SelectSingleNode("site/title");
			if(title != null)
			{
				XmlAttribute val = (XmlAttribute)title.Attributes.GetNamedItem("value"); 
				if(val != null)
					_defaultTitle = val.Value;
			}
			
			//get the main page links
			System.Xml.XmlNodeList cssFiles = xml.SelectNodes("links/css");
			foreach(XmlNode css in cssFiles)
			{
				XmlAttribute file = (XmlAttribute)css.Attributes.GetNamedItem("file");
				XmlAttribute path = (XmlAttribute)css.Attributes.GetNamedItem("path");
				if(file != null && path != null)
					_cssFiles.Add(file.Value,path.Value);
			}

			System.Xml.XmlNodeList scriptFiles = xml.SelectNodes("links/script");
			foreach(XmlNode script in scriptFiles)
			{
				XmlAttribute file = (XmlAttribute)script.Attributes.GetNamedItem("file");
				XmlAttribute path = (XmlAttribute)script.Attributes.GetNamedItem("path");
				
				if(file != null && path != null)
					_scriptFiles.Add(file.Value,path.Value);
			}

			//get the place holder settings so we can see what user controls to load into our base page placeholders
			System.Xml.XmlNodeList metaTags = xml.SelectNodes("metatags/meta");

			foreach(XmlNode tag in metaTags)
			{
				XmlAttribute name = (XmlAttribute)tag.Attributes.GetNamedItem("name");
				XmlAttribute content = (XmlAttribute)tag.Attributes.GetNamedItem("Content");
				this._metaTags.Add(name.Value,content.Value);
			}
		}
	
		//do not allow outside access to the individual values of the configuration
		public NameValueCollection BodyAttributes
		{get{return _bodyAttributes;}}

		public HorizontalAlign SiteAlignment
		{get{return _alignment;}}

		public string DefaultTitle
		{get{return _defaultTitle;}}

		public NameValueCollection Scripts
		{get{return _scriptFiles;}}

		public NameValueCollection StyleSheets
		{get{return _cssFiles;}}

		public string Name
		{get{return _pageName;}}
		
		public NameValueCollection MetaTags
		{get{return _metaTags;}}

	}
}