//
// System.Web.UI.HtmlControls.HtmlHead
//
// Authors:
// Lluis Sanchez Gual (lluis@novell.com)
//
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using System.ComponentModel;
using System.Collections;
using System.Security.Permissions;
using System.Web.UI.WebControls;
namespace System.Web.UI.HtmlControls
{
// CAS - no InheritanceDemand here as the class is sealed
[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
// attributes
[ControlBuilder (typeof(HtmlHeadBuilder))]
public sealed class HtmlHead: HtmlGenericControl, IPageHeader, IParserAccessor
{
HtmlTitle title;
Hashtable metadata;
ArrayList styleSheets;
StyleSheetBag styleSheet;
public HtmlHead(): base("head") {}
public HtmlHead (string tag) : base (tag)
{
}
protected internal override void OnInit (EventArgs e)
{
Page.SetHeader (this);
}
protected internal override void RenderChildren (HtmlTextWriter writer)
{
base.RenderChildren (writer);
if (metadata != null) {
foreach (DictionaryEntry entry in metadata) {
writer.AddAttribute ("name", entry.Key.ToString ());
writer.AddAttribute ("content", entry.Value.ToString ());
writer.RenderBeginTag (HtmlTextWriterTag.Meta);
writer.RenderEndTag ();
}
}
if (styleSheet != null)
styleSheet.Render (writer);
}
protected internal override void AddedControl (Control control, int index)
{
if (control is HtmlTitle)
title = (HtmlTitle) control;
base.AddedControl (control, index);
}
protected internal override void RemovedControl (Control control)
{
if (title == control)
title = null;
base.RemovedControl (control);
}
IList IPageHeader.LinkedStyleSheets {
get {
if (styleSheets == null) styleSheets = new ArrayList ();
return styleSheets;
}
}
IDictionary IPageHeader.Metadata {
get {
if (metadata == null) metadata = new Hashtable ();
return metadata;
}
}
IStyleSheet IPageHeader.StyleSheet {
get {
if (styleSheet == null) styleSheet = new StyleSheetBag ();
return styleSheet;
}
}
string IPageHeader.Title {
get { return title.Text; }
set { title.Text = value; }
}
}
internal class StyleSheetBag: IStyleSheet
{
ArrayList entries = new ArrayList ();
internal class StyleEntry
{
public Style Style;
public string Selection;
public IUrlResolutionService UrlResolver;
}
public StyleSheetBag ()
{
}
public void CreateStyleRule (Style style, string selection, IUrlResolutionService urlResolver)
{
StyleEntry entry = new StyleEntry ();
entry.Style = style;
entry.UrlResolver = urlResolver;
entry.Selection = selection;
entries.Add (entry);
}
public void RegisterStyle (Style style, IUrlResolutionService urlResolver)
{
for (int n=0; n